I spoke to a Berger technician a year ago about a recommended load data (unpublished by Berger) for the 7 mm 195gr EOL, using in my custom 28 Nosler. We came to this particular point in the discussion of load development. He said that he likes to start with the lowest powder charge and begin by finding COAL. That tells him how much case volume he has to work with to begin best powder charge. The question in my mind (chicken or egg dilemma) is whether the charge affects the COAL (projectile relationship to taking the lands)? I began testing this with a IMR 8133 to compare to my existing load (.010" off lands with H1000). Interesting that .090" and .050" stood out as more accurate with the lowest recommended powder charge (was using Berger's method of .040 'bands' to find a general COAL). I wasn't able to finish the experiment by changing the powder charges. Just thought I would share the reasoning of the technician.
I find the same problem in a lot of new factory rifles, so the assumption of it being caused by the firing pin is real low, but possible in some cases. I do a lot of testing out of a Howa 1500 26" BBL 1:8 twist 6.5CM with RL-26, and H-4350, Lapua large and small RP cases. I use CCI 450 mag primers in the small RP cases and Federal #215 mag LR primer cases and I have found that this problem happens across the whole spectrum. Even in the new rifles that I get to play with from my buddies out on the range. In factory barrels, I have almost concluded that this is the nature of the BEAST. My FIL and I just changed out his Howa 1500 6.5CM barrel with a Preferred Barrel Blanks SS 27" Palma barrel with the Eric Cortina Break tuner. We are in the process of breaking it in and fire forming the cases. In the next two weeks I will be able to report back on my finding. I love your channel and your data driven love for putting numbers behind your findings. From one data junkie to another. Thank you for your hard work and keep the data flowing.👍👍👍👀😎
Thanks @ctech01 I always want the data to speak for itself. I don't disregard when people are discussing things but you have to test. I am new to this pressure trace II and have just installed a sensor on another barrel. I hope to get some more data for comparison. I am just learning a new tool. I am sure a new spring isn't going to hurt and if it changes the performance I really want to know.
@@BoltActionReloading You and me both. The Pressure Trace II has really got my attention also. I'll will be following you very closely on that subject. Well,, I follow you very closely on every subject. LOL Your data points out shine all the rest . Thank YOU.
I recall an article by or interviewed from Litz regarding reloading for long range. Go up until you see pressure/max, dial back a grain or two so you don't ruin the brass, and find COAL that shoots. Done. Max effective velocity, decent brass longevity. and tight groups. What more could a reloader want? I still can't bring myself to do that. I still do a few spread powder weight groups near where I want to be, then attack OAL. If I don't test at least a 1.5-2 gr spread I feel like I'm missing something.
Interesting. Please explore the lock time delay. I imagine production rifle actions have more issues with lock time delays when compare to fancy custom actions.
This is a deep dive for sure. Like to watch the channel for ideas. Gotta be honest though when I’m working up loads I just go 0.2 grains at a time until I get the best group. Usually it’s somewhere between 0.3-0.6 moa which is good enough for me.
@@BoltActionReloading exactly why I watch your way more experienced. Definition of insanity is doing the same thing over and over again expecting different results.
Since you were fire forming brass, maybe an inconsistent case volume effect, neck tension, or flash hole consistency. You used Lapua so unlikely but maybe repeat with the same brass after fire forming before you introduce the change in pin spring. Thanks for sharing. I didn't think of a delayed ignition being a significant cause of variance.
I think you just might be on to something, 1st I would change spring then do exact same test loads, if no delays great, if still delay, try same primer different lot number (I know that's almost impossible right now), next just for giggles try different powder just to see if theres a delay if so go to different lot number on powder. Excellent information, all I ask is for an old guy I had to watch couple 3 times because you were speaking so fast. Stay safe, God bless and happy loading.
ive been trying to comprehend this COAL length first approach for a bit now, and i think i must be missing something. i have not tried it yet so maybe thats what im missing. my question is wouldnt you have a perpetual end goal? for example, lets say you start with the COAL length testing, and you test a single power. then you run with a single COAL on multiple powders. then you pick a powder, and test multiple load grain weights. then are you done, or do you go back test COAL length again on the chosen powder? lets say do you retest the COAL length again, does that imply you would need to go back test COAL on every powder to have an accurate powder picking test? kind of creates a conundrum in my head. i'm just hoping someone can breakdown the intended approach when doing this. i was originally taught less bullet jump is better, so i've always loaded with the use of the hornday OAL length gauge to get close to the lands to set my COAL prior to load development. i've seen the erik cortina video and your video on stop chasing the lands but im still scratching my head. i guess what is confusing me is that there are two variables at play that both have an impact on the same thing. COAL and powder charge both have an impact on case volume. how does one choose where to start with a COAL, and the topic being addressed in this video, COAL or powder charge tests first. seems like a chicken and the egg situation, or a problem that each new solution creates a new target. in finance we often call this a moving target.
Bean watching your channel for quite a while now great content I’ve found a point that might be of interest or to be past on.I have a forester press notice that on the down stroke that the stop luges one had over .0025” of clearance cleaned off the paint an a little metal to .000” seats bullets more consistent
Really like the pressure trace data it would be cool if you could measure pressures untill you get hard bolt lift to see if it match's saami pressure's
Are bullets perfect ? I wonder how much variance there is in a box of 100 bullets.... Is COAL as accurate as finding that CBTO and making them all that number? Just in case the bullets vary in any way ? Reloading is the most interesting thing Ive ever done as far as hobbies go. You can measure every tiny aspect of everything. As a beginner , i just muddy the water more with my dumb questions I suppose , hehe... Love this channel
Maybe not just look at the firing pin spring maybe look at the entire assembly? Perhaps you could check the firing pin fitment and protrusion in the bolt body? Or perhaps you may have stumbled onto the fact that despite modern manufacturing primers aren’t as consistent as we think they are.
First on Sunday! But seriously thanks for content brother you’ve helped me tremendously and many others I know. Now about my new lapua 284 to Swiss 7.5 project…
This is the third time that I've seen an issue with that spring mentioned in the last 6 months or so. I think that F class John, and winning in the wind has mentioned the same issue. It sure makes me want to replace mine just in case. I like your style 😎 👌
Hi Jay, Glad you enjoy the channel. I have seen them as well. I really didn't think much about it until I saw the pressure trace data and thought that it was an anomaly at first, but I believe that it is too much of a coincidence that these anomalies line up with some of the fliers.
@@BoltActionReloading not being a pro, this is the first time that I've seen pressure data used along with everything else. It really makes me wonder if this is more useful than something like the amp press for finding improvements. 🤔
@@jayvanleeuwen7713 I am not claiming to be a pro by any means either. I have a couple huge tests coming up where I hope the data will add to the information. I think its just like anything else, until you measure it you don't know how important it may be.
I'm currently staying at max mag length and therefore max case capacity. Then going up the charge weights to look for pressure. I intend to then back off on charge slightly and then reduce CBTO slowly and see what shoots best. Not the way I've seen others following so I'll see how it works. I'd like to know what reduction in CBTO is equivalent to what increase in load. Both increase pressure, what's the relationship?
Hi Alan, Based on the variance that I measure across the new brass from this lot that I have measure the most its moving during fire forming is .0045" Also having this same occurrence on the brass that was bumped .002 in the chart I show at 7:48 had the same issue show up.
Thanks for this one! I have new 6.5 CM Lapua brass small rifle primer and Hornady 140 grain Match that I want to fire form for my new (unfired) rifle. My plan is to load H4350 and Staball 6.5. Since the rifle is new I am going to load all the rounds at 2.80 and not worry about seating depth. My question is should I load all rounds at a charge midway between minimum and maximum for each powder? I plan to use my new chronograph for all loads to see if I can see some potential nodes for further development. Thanks for all you do for the reloading community!
Hi Steve! Your welcome for the video. I really think you should reconsider the COAL you are loading. Finding approximately where the the lands are is not difficult and it is unlikely that at exactly 2.800 is where you find your best groups. Find the lands, see what your magazine will function reliably and at least know what you have to work with. For powder testing stepping a couple grains back from max and then do a ladder test in .2 grain increments looking for pressure signs along the way. The 140 ELD-M has been a great option for me so far I have a lot of data on it in this playlist if you haven't caught it. th-cam.com/play/PLXl7rMHW73NOH6EKeU70IrjZoiHcYFenq.html
@@BoltActionReloading Great suggestion! I have the Hornady gauge for finding the lands but haven’t tried it yet. Guess I’ll do that first thing. You are always of great help, not only to me, and to the reloading community with your videos! Thank you 🙏
@@BoltActionReloading I started looking for the lands as you suggested with the Hornady O.A.L. Gauge. My initial measurements were all over the place. I didn’t have smooth response from the gauge so did some sanding on the rod that pushes the bullet forward into the chamber. I then did ten measurements and again a wide range from my perspective. The ten were added together and divided by 10 giving an average of 2.258”. When I look at all of these I see the following five of the measurements at: 2.253, 2.254, 2.2545, 2.2540, and 2.2520. These five average 2.2535”! So just call it 2.254” and go with it? Confused and thanks for listening. 🙏
Hi Steve could be that there are still some rough spots if it hasn't been fired, but now you have a great idea where your starting. Try again after you have fired it and see if its any easier.
@@BoltActionReloading I guess I was a little verbose! The measurements were using the Hornady case that you put on the O.A.L gauge to measure for the bullet hitting the lands. Guess I’ll go with the 2.254” and back up to 2.251” as a start for seating die setup. Thanks
It was also interesting to see the SD and ES change as you gor farther from the lands as well. Although, when you are corking the lands it isn't surprising that you got such velocities. Side curiosity, you showed your numbers for measurements for the 142 gr sierra. Were these new measurements taken or original ones when you got the barrel?
These were original to the barrel. I just opened a new lot of these 142s so I want to retake the measurement. Also I need to take with my SAC comparator so I get its corresponding measurement.
I want to find out if new spring fixes the issue. I’d have no way of finding this problem till it got real bad and the spring would probably be the thing I think of.
Not sure. I know with YT and their policy updates it adds a lot of complication and limitations. Sometimes its less stressful to not worry about it. Scott in the video said they went "radio silent" so who knows. I really liked their content though.
How can you start with COAL ? Doesn’t powder weight/pressure difference change the harmony at which the barrel vibrates, ergo when you change the powder load you are back at searching the right harmony with COAL. Nevermind you the speed variations/spikes in speed at different powder loads.
All these were seated with my Bald eagle with measure depth between .005 and .006 below flush. They should be very consistent. I have thought about a depth test at some point but I want to dial in this load a little more first.
Question, how are you able to see these ignition delays in quick load? Are you using an actual pressure sensor or is this something that quickload can figure out through theoretical data? I haven't used quick load but I've had a lot of interest in possibly investing in it you see what it has to offer.
HI Brett. This is not a quickload thing at all. This is measured with a strain gauge mounted to the chamber area of the barrel. The system is called a pressure trace II. A lot of people are talking about GRT reloading being a free replacement. I haven't used ti much so I can not confirm or deny such claims. I just haven't taken the time to learn it.
Can you replicate the ignition delay with annealed once fired brass? I'm more inclined to think this is brass related given how variable even Lapua is.
The graph I show at 7:48 was on annealed previously fired brass. during fireforming these aren't moving more than .0045" the best I can tell. For new brass I wouldn't call it excessive.
This graph is from my pressure trace II system. It is a new tool I picked up to try and add more value to my videos and this was one of the things that I found so far.
Okay thank you, I tracked it down after posting that comment. Seems like they have closed up shop. Very interesting to see the fliers line up with the delay.
No… he’s just neck sizing the new brass to get consistent tension for bullet seating and to fix any deformations from shipping. No need to full length resize brand new brass unless there’s a huge dent in it from shipping (but even that will fire form out anyways). If you full length size new brass you are just work hardening the brass for no reason. Inspect each case and just neck size (can be done with FL die when set up right) to get any potential dents or inconsistencies out of the neck…. Then load up and fire form.
@@cjsawinski spot on! I smirk every time I see somebody FL sizing new brass. 😏 FL dies won't touch new brass in any meaningful way. They just needlessly work the neck.
If you're gonna replace that spring, you might want to think about swapping out that end pice, seen a couple break. I just can't remember what it's called.
Hi Tom. I appreciate the feedback. I am always trying to balance content and time. It is impossible to make everyone happy. I am not sure about the "choose less words" part. I certainly try and makes things as clear and concise as possible, but there is always a different way. as far as speed, (some don't know) you can slow the playback speed down to 75% or further if you like. I used to get the comment that I was droning on to slow so I try to keep a consistent pace. Its a hard line to walk. I hope you enjoy the content either way. BAR
I spoke to a Berger technician a year ago about a recommended load data (unpublished by Berger) for the 7 mm 195gr EOL, using in my custom 28 Nosler. We came to this particular point in the discussion of load development. He said that he likes to start with the lowest powder charge and begin by finding COAL. That tells him how much case volume he has to work with to begin best powder charge. The question in my mind (chicken or egg dilemma) is whether the charge affects the COAL (projectile relationship to taking the lands)? I began testing this with a IMR 8133 to compare to my existing load (.010" off lands with H1000). Interesting that .090" and .050" stood out as more accurate with the lowest recommended powder charge (was using Berger's method of .040 'bands' to find a general COAL). I wasn't able to finish the experiment by changing the powder charges. Just thought I would share the reasoning of the technician.
In this day and age you start your load development with whatever components are available and make the best of it.
Such a crock right now. Makes no sense that components aren’t showing up at all.
That's my method and with as few components as possible.
I find the same problem in a lot of new factory rifles, so the assumption of it being caused by the firing pin is real low, but possible in some cases. I do a lot of testing out of a Howa 1500 26" BBL 1:8 twist 6.5CM with RL-26, and H-4350, Lapua large and small RP cases. I use CCI 450 mag primers in the small RP cases and Federal #215 mag LR primer cases and I have found that this problem happens across the whole spectrum. Even in the new rifles that I get to play with from my buddies out on the range. In factory barrels, I have almost concluded that this is the nature of the BEAST. My FIL and I just changed out his Howa 1500 6.5CM barrel with a Preferred Barrel Blanks SS 27" Palma barrel with the Eric Cortina Break tuner. We are in the process of breaking it in and fire forming the cases. In the next two weeks I will be able to report back on my finding. I love your channel and your data driven love for putting numbers behind your findings. From one data junkie to another. Thank you for your hard work and keep the data flowing.👍👍👍👀😎
Thanks @ctech01 I always want the data to speak for itself. I don't disregard when people are discussing things but you have to test. I am new to this pressure trace II and have just installed a sensor on another barrel. I hope to get some more data for comparison. I am just learning a new tool. I am sure a new spring isn't going to hurt and if it changes the performance I really want to know.
@@BoltActionReloading You and me both. The Pressure Trace II has really got my attention also. I'll will be following you very closely on that subject. Well,, I follow you very closely on every subject. LOL Your data points out shine all the rest . Thank YOU.
This is highly relevant to me today, thank you mate. Got a small ring 98 in 6.5x55 that's going to be delivered in the next few hours :D
Hi Matt, Glad you enjoyed it!
I recall an article by or interviewed from Litz regarding reloading for long range. Go up until you see pressure/max, dial back a grain or two so you don't ruin the brass, and find COAL that shoots. Done. Max effective velocity, decent brass longevity. and tight groups. What more could a reloader want?
I still can't bring myself to do that. I still do a few spread powder weight groups near where I want to be, then attack OAL. If I don't test at least a 1.5-2 gr spread I feel like I'm missing something.
Interesting. Please explore the lock time delay. I imagine production rifle actions have more issues with lock time delays when compare to fancy custom actions.
Very Very interesting 🤔 ? Waiting for next video on this topic. You channel is me alot with reloading.
Keep up the good work.
👊👍🇿🇦
Thanks 👍
This is a deep dive for sure. Like to watch the channel for ideas. Gotta be honest though when I’m working up loads I just go 0.2 grains at a time until I get the best group. Usually it’s somewhere between 0.3-0.6 moa which is good enough for me.
Nothing wrong with whatever works. I just like to test things out and see if there is a "better" way of doing it.
@@BoltActionReloading exactly why I watch your way more experienced. Definition of insanity is doing the same thing over and over again expecting different results.
Since you were fire forming brass, maybe an inconsistent case volume effect, neck tension, or flash hole consistency. You used Lapua so unlikely but maybe repeat with the same brass after fire forming before you introduce the change in pin spring.
Thanks for sharing. I didn't think of a delayed ignition being a significant cause of variance.
I think you just might be on to something, 1st I would change spring then do exact same test loads, if no delays great, if still delay, try same primer different lot number (I know that's almost impossible right now), next just for giggles try different powder just to see if theres a delay if so go to different lot number on powder. Excellent information, all I ask is for an old guy I had to watch couple 3 times because you were speaking so fast. Stay safe, God bless and happy loading.
You can adjust the playback speed to 0.75x
ive been trying to comprehend this COAL length first approach for a bit now, and i think i must be missing something. i have not tried it yet so maybe thats what im missing. my question is wouldnt you have a perpetual end goal? for example, lets say you start with the COAL length testing, and you test a single power. then you run with a single COAL on multiple powders. then you pick a powder, and test multiple load grain weights. then are you done, or do you go back test COAL length again on the chosen powder? lets say do you retest the COAL length again, does that imply you would need to go back test COAL on every powder to have an accurate powder picking test? kind of creates a conundrum in my head. i'm just hoping someone can breakdown the intended approach when doing this.
i was originally taught less bullet jump is better, so i've always loaded with the use of the hornday OAL length gauge to get close to the lands to set my COAL prior to load development. i've seen the erik cortina video and your video on stop chasing the lands but im still scratching my head. i guess what is confusing me is that there are two variables at play that both have an impact on the same thing. COAL and powder charge both have an impact on case volume. how does one choose where to start with a COAL, and the topic being addressed in this video, COAL or powder charge tests first.
seems like a chicken and the egg situation, or a problem that each new solution creates a new target. in finance we often call this a moving target.
Bean watching your channel for quite a while now great content I’ve found a point that might be of interest or to be past on.I have a forester press notice that on the down stroke that the stop luges one had over .0025” of clearance cleaned off the paint an a little metal to .000” seats bullets more consistent
Hopefully Tubbs makes firing pin springs for the RPR one day.
Haven’t even watched yet and know it will be good.
I hope it doesn't disappoint.
Really like the pressure trace data it would be cool if you could measure pressures untill you get hard bolt lift to see if it match's saami pressure's
Are bullets perfect ? I wonder how much variance there is in a box of 100 bullets.... Is COAL as accurate as finding that CBTO and making them all that number? Just in case the bullets vary in any way ? Reloading is the most interesting thing Ive ever done as far as hobbies go. You can measure every tiny aspect of everything. As a beginner , i just muddy the water more with my dumb questions I suppose , hehe... Love this channel
Maybe not just look at the firing pin spring maybe look at the entire assembly? Perhaps you could check the firing pin fitment and protrusion in the bolt body? Or perhaps you may have stumbled onto the fact that despite modern manufacturing primers aren’t as consistent as we think they are.
First on Sunday! But seriously thanks for content brother you’ve helped me tremendously and many others I know. Now about my new lapua 284 to Swiss 7.5 project…
I appreciate that!
This is the third time that I've seen an issue with that spring mentioned in the last 6 months or so. I think that F class John, and winning in the wind has mentioned the same issue. It sure makes me want to replace mine just in case. I like your style 😎 👌
Hi Jay,
Glad you enjoy the channel. I have seen them as well. I really didn't think much about it until I saw the pressure trace data and thought that it was an anomaly at first, but I believe that it is too much of a coincidence that these anomalies line up with some of the fliers.
@@BoltActionReloading not being a pro, this is the first time that I've seen pressure data used along with everything else. It really makes me wonder if this is more useful than something like the amp press for finding improvements. 🤔
@@jayvanleeuwen7713 I am not claiming to be a pro by any means either. I have a couple huge tests coming up where I hope the data will add to the information. I think its just like anything else, until you measure it you don't know how important it may be.
Thank you for sharing your research
I am glad you enjoy it!
I'm currently staying at max mag length and therefore max case capacity. Then going up the charge weights to look for pressure. I intend to then back off on charge slightly and then reduce CBTO slowly and see what shoots best. Not the way I've seen others following so I'll see how it works.
I'd like to know what reduction in CBTO is equivalent to what increase in load. Both increase pressure, what's the relationship?
How far forward did the shoulder move when you fire formed the brass? Excess head space could cause erratic ignition.
Hi Alan,
Based on the variance that I measure across the new brass from this lot that I have measure the most its moving during fire forming is .0045" Also having this same occurrence on the brass that was bumped .002 in the chart I show at 7:48 had the same issue show up.
Winning in the wind channel talks about bolt maintenance
Thanks for this one! I have new 6.5 CM Lapua brass small rifle primer and Hornady 140 grain Match that I want to fire form for my new (unfired) rifle. My plan is to load H4350 and Staball 6.5. Since the rifle is new I am going to load all the rounds at 2.80 and not worry about seating depth. My question is should I load all rounds at a charge midway between minimum and maximum for each powder? I plan to use my new chronograph for all loads to see if I can see some potential nodes for further development. Thanks for all you do for the reloading community!
Hi Steve! Your welcome for the video. I really think you should reconsider the COAL you are loading. Finding approximately where the the lands are is not difficult and it is unlikely that at exactly 2.800 is where you find your best groups. Find the lands, see what your magazine will function reliably and at least know what you have to work with. For powder testing stepping a couple grains back from max and then do a ladder test in .2 grain increments looking for pressure signs along the way. The 140 ELD-M has been a great option for me so far I have a lot of data on it in this playlist if you haven't caught it. th-cam.com/play/PLXl7rMHW73NOH6EKeU70IrjZoiHcYFenq.html
@@BoltActionReloading Great suggestion! I have the Hornady gauge for finding the lands but haven’t tried it yet. Guess I’ll do that first thing. You are always of great help, not only to me, and to the reloading community with your videos! Thank you 🙏
@@BoltActionReloading I started looking for the lands as you suggested with the Hornady O.A.L. Gauge. My initial measurements were all over the place. I didn’t have smooth response from the gauge so did some sanding on the rod that pushes the bullet forward into the chamber. I then did ten measurements and again a wide range from my perspective. The ten were added together and divided by 10 giving an average of 2.258”. When I look at all of these I see the following five of the measurements at:
2.253, 2.254, 2.2545, 2.2540, and 2.2520. These five average 2.2535”! So just call it 2.254” and go with it?
Confused and thanks for listening. 🙏
Hi Steve could be that there are still some rough spots if it hasn't been fired, but now you have a great idea where your starting. Try again after you have fired it and see if its any easier.
@@BoltActionReloading I guess I was a little verbose! The measurements were using the Hornady case that you put on the O.A.L gauge to measure for the bullet hitting the lands. Guess I’ll go with the 2.254” and back up to 2.251” as a start for seating die setup. Thanks
Hey do a video on the road unloading tool known as grtools
It was also interesting to see the SD and ES change as you gor farther from the lands as well. Although, when you are corking the lands it isn't surprising that you got such velocities. Side curiosity, you showed your numbers for measurements for the 142 gr sierra. Were these new measurements taken or original ones when you got the barrel?
These were original to the barrel. I just opened a new lot of these 142s so I want to retake the measurement. Also I need to take with my SAC comparator so I get its corresponding measurement.
But doesn't charge weight affect barrel harmonics which would then change the appropriate seating depth?
I want to find out if new spring fixes the issue. I’d have no way of finding this problem till it got real bad and the spring would probably be the thing I think of.
I sure hope that it fixes the issue as well. Only testing will know. I wish it wasn't so hard to get a stupid spring though.
What kind of lubricant do you use on your firing pin?
Whatever happened to the 6.5 guys? That was a good TH-cam channel.
Not sure. I know with YT and their policy updates it adds a lot of complication and limitations. Sometimes its less stressful to not worry about it. Scott in the video said they went "radio silent" so who knows. I really liked their content though.
How can you start with COAL ?
Doesn’t powder weight/pressure difference change the harmony at which the barrel vibrates, ergo when you change the powder load you are back at searching the right harmony with COAL.
Nevermind you the speed variations/spikes in speed at different powder loads.
Check Wolf spring.
This might be dumb but what about the primer seating depth, could there be a variance in the ones that were off ?...Just thinking out loud..
All these were seated with my Bald eagle with measure depth between .005 and .006 below flush. They should be very consistent. I have thought about a depth test at some point but I want to dial in this load a little more first.
Question, how are you able to see these ignition delays in quick load? Are you using an actual pressure sensor or is this something that quickload can figure out through theoretical data? I haven't used quick load but I've had a lot of interest in possibly investing in it you see what it has to offer.
HI Brett. This is not a quickload thing at all. This is measured with a strain gauge mounted to the chamber area of the barrel. The system is called a pressure trace II. A lot of people are talking about GRT reloading being a free replacement. I haven't used ti much so I can not confirm or deny such claims. I just haven't taken the time to learn it.
Can you replicate the ignition delay with annealed once fired brass? I'm more inclined to think this is brass related given how variable even Lapua is.
The graph I show at 7:48 was on annealed previously fired brass. during fireforming these aren't moving more than .0045" the best I can tell. For new brass I wouldn't call it excessive.
My friend ! Help me. Look at Matt Dubber . The BEST
reloading dies according to him is something "Xece..." .Why don't precition shooters don't use it?
I am a newbie and have no issues how you measure ignition delay. How can you measure that?
This graph is from my pressure trace II system. It is a new tool I picked up to try and add more value to my videos and this was one of the things that I found so far.
I feel like this test needs redone for an auto loader preferably with untouchable lands at magazine length.
How do you measure chamber pressure? Sorry for the moon question.
Its called a Pressure Trace II. If you want to watch my review its here: th-cam.com/video/KeMzq3ZepYg/w-d-xo.html
Okay thank you, I tracked it down after posting that comment. Seems like they have closed up shop. Very interesting to see the fliers line up with the delay.
I didn't know he had closed. I just ordered some more strain gauges from him a couple months back.
Oh, maybe I was going to the wrong web page? What link do you have for them?
No I agree after googling I can't find it any longer. I am glad that I got my supplies before the doors closed
Newer reloader…I thought we were supposed to FL resize all brass. Even new brass. Why only a neck mandrel? Because Lapua Brass is superior?
No… he’s just neck sizing the new brass to get consistent tension for bullet seating and to fix any deformations from shipping. No need to full length resize brand new brass unless there’s a huge dent in it from shipping (but even that will fire form out anyways). If you full length size new brass you are just work hardening the brass for no reason.
Inspect each case and just neck size (can be done with FL die when set up right) to get any potential dents or inconsistencies out of the neck…. Then load up and fire form.
Hello! I did a video exploring this topic might want to check it out: th-cam.com/video/P16Mhe3TMFQ/w-d-xo.html
@@cjsawinski spot on! I smirk every time I see somebody FL sizing new brass. 😏 FL dies won't touch new brass in any meaningful way. They just needlessly work the neck.
Are the 6.5 guys still shooting?
I haven't seen a update form them in quite a while.
If you're gonna replace that spring, you might want to think about swapping out that end pice, seen a couple break. I just can't remember what it's called.
I may, but I only want to change one thing at a time when I am testing. There are aftermarket pins too which I will consider as well.
I think Erik Cortina has the right method. This is not.
Two points: 1. Choose less words. 2. Slow down. Same info but better experience. Thank you
Just hear faster.
Nyet. Experience is fine.
I like your presentation the way that it is. Specific, too the point, and efficient.
Hi Tom. I appreciate the feedback. I am always trying to balance content and time. It is impossible to make everyone happy. I am not sure about the "choose less words" part. I certainly try and makes things as clear and concise as possible, but there is always a different way. as far as speed, (some don't know) you can slow the playback speed down to 75% or further if you like. I used to get the comment that I was droning on to slow so I try to keep a consistent pace. Its a hard line to walk. I hope you enjoy the content either way.
BAR