Wait a minute, Trimming metal off of the neck of the case in it's self does not control neck tension. Neck tension is determined by how large the case mouth is at the time you seat a bullet into the case. By using the tool that removes the neck brass to make for a uniform thickness can have an affect on neck tension, as a thinner neck wont allow for a greater amount of tension, but that depends on how work hardened the brass has become. When the case expands to the fullest size it can to release the bullet in the chamber the bullets sides are not rubbing along the case wall and thus possibly off center to the coax if the bore of the barrel. The object here is to have the neck portion of the case coax to the chamber at the neck, and the brass thickness allows the bullet to be in the center of the bore, (you can have as much as .005 clearance between outside neck diameter compared to chamber neck diameter) thus in the center of the chamber, and that continues back towards the center of the case head. Those concentricity gauges are usually used while a bullet is seated into a cartridge the dial is set to rub on the ogive of the bullet and at that point you measure runout. Of course you assume the bullet jacket thickness does not change anywhere that could affect the runout of a measurement. I find it hard to believe that you go through all these steps with your brass, and then throw them into a loose can or pile them on your work table and not place then into a cartridge tray with holes drilled to protect the cases from damaging the necks. Next time you have fired cases, handle them coming out of the chamber so they don't get nicked up, crushed, dented. then see if a bullet will fall through the case from the neck, if a bullet drags along going into the case the case neck is too thick in some spots and should be neck-turned from the inside, before being resized.
Are you referring to the Sinclair run out gauge? That was a thought I also had to keep constand pressure and roll the case instead of using my fingers.
Not sure why you'd outside neck turn after running the case through your die. If the case is run through a good quality die, the OD will be concentric & centered with the body of the case. If there are neck wall thickness differences, they will now be pushed to the ID of the neck. By taking material off the OD, all you have done is aligned what was a centred OD with the un-centered ID.
The plunger isn't even firmly on the neck, it's bottomed out and it returns to that "dimension" because it can't go down any further. Try putting installing the indicator with the plunger CENTERED in its travel and see if you can be a little better "machinist" than Stevie Wonder would have been.
He is using the Sinclair Concentricity gauge with digital indicator. Link: www.sinclairintl.com/reloading-equipment/measuring-tools/concentricity-gauges/sinclair-concentricity-gauge-prod37479.aspx
Not A lot. You will not see it at 100 yards. At 600 yards it is more noticeable. Still I am a tool and die maker i understand precision and it is really a waste of time unless u shoot competitions at a very high level. For 98% of shooter you should worry about consistency in your powder charge and your bullet speed. This will make a huge improvement in groupings. Until you finds your node and have the pet load perfected for your rifle there is absolutely zero reason to neck turn. Not only that using bushing sizing dies as well. It is basically just throwing time and money at something for such a small improvement! Military snipers don’t use neck turning. In “country” most use factory match Ammo not even tunes to their rifle. So it will make improvements but not much. So if I have way too much time on your hands and want to spend well over double the time it takes to reload a accurate round and also throw lots more money at it all to go from .36moa to .34moa lol it helps! Most people who do this have all but perfected their loads and really are just trying to pull everything they can out of it to get every bit of accuracy. Most of the accuracy will come with consistent charges and a good seater die. I use a Redding competition seater with a mic and it seats it so perfect every time there is never a bit of visible runout! So that means less than .003” runout on every round. As long as u have that and consistent loads and consistent seating depths and try to stay within .01” of the lands for seating but even that is not huge. I have a AR 308 that must be seated .05” off the lands to fit in mag and it shoots .375” groups all day. That is a 18” barrel (Kreiger) and it is very accurate. That is with 175 SMK and those are very forgiving on the “jump” to the rifling! I would not dare try that with a Berger
@@shawn01707 For the most part what you say is true. I'm a blackout fan. Spent 223/556 cases are my case source which I shorten and form. Depending on the brass manufacturer it may wind up with a thicker neck. So this post is right on target for me. I don't want to jamb a case in my rifle.
@@shawn01707 If you do your load development with non-neck turned cases and you decide to neck turn, you will have to re-do your load development. You will also 100% see a difference at 100 yards. Boomers don't know shit.
Wait a minute, Trimming metal off of the neck of the case in it's self does not control neck tension. Neck tension is determined by how large the case mouth is at the time you seat a bullet into the case. By using the tool that removes the neck brass to make for a uniform thickness can have an affect on neck tension, as a thinner neck wont allow for a greater amount of tension, but that depends on how work hardened the brass has become. When the case expands to the fullest size it can to release the bullet in the chamber the bullets sides are not rubbing along the case wall and thus possibly off center to the coax if the bore of the barrel. The object here is to have the neck portion of the case coax to the chamber at the neck, and the brass thickness allows the bullet to be in the center of the bore, (you can have as much as .005 clearance between outside neck diameter compared to chamber neck diameter) thus in the center of the chamber, and that continues back towards the center of the case head. Those concentricity gauges are usually used while a bullet is seated into a cartridge the dial is set to rub on the ogive of the bullet and at that point you measure runout. Of course you assume the bullet jacket thickness does not change anywhere that could affect the runout of a measurement. I find it hard to believe that you go through all these steps with your brass, and then throw them into a loose can or pile them on your work table and not place then into a cartridge tray with holes drilled to protect the cases from damaging the necks. Next time you have fired cases, handle them coming out of the chamber so they don't get nicked up, crushed, dented. then see if a bullet will fall through the case from the neck, if a bullet drags along going into the case the case neck is too thick in some spots and should be neck-turned from the inside, before being resized.
Using a flat stick with some flat rubber bands helps keep consistent pressure on the case. Great video, thanks for putting it up
Are you referring to the Sinclair run out gauge? That was a thought I also had to keep constand pressure and roll the case instead of using my fingers.
Not sure why you'd outside neck turn after running the case through your die. If the case is run through a good quality die, the OD will be concentric & centered with the body of the case. If there are neck wall thickness differences, they will now be pushed to the ID of the neck. By taking material off the OD, all you have done is aligned what was a centred OD with the un-centered ID.
Good stuff
The plunger isn't even firmly on the neck, it's bottomed out and it returns to that "dimension" because it can't go down any further. Try putting installing the indicator with the plunger CENTERED in its travel and see if you can be a little better "machinist" than Stevie Wonder would have been.
Were can I get the 21st century neck turning lathe
I have the same question. Where do you get the digital gauge portion? Thanks!
what micrometer are you using for the neck thickness tests and where did you buy the digital piece?
He is using the Sinclair Concentricity gauge with digital indicator. Link:
www.sinclairintl.com/reloading-equipment/measuring-tools/concentricity-gauges/sinclair-concentricity-gauge-prod37479.aspx
What are the gains from neck turning in ur experience
Not A lot. You will not see it at 100 yards. At 600 yards it is more noticeable. Still I am a tool and die maker i understand precision and it is really a waste of time unless u shoot competitions at a very high level. For 98% of shooter you should worry about consistency in your powder charge and your bullet speed. This will make a huge improvement in groupings. Until you finds your node and have the pet load perfected for your rifle there is absolutely zero reason to neck turn. Not only that using bushing sizing dies as well. It is basically just throwing time and money at something for such a small improvement! Military snipers don’t use neck turning. In “country” most use factory match Ammo not even tunes to their rifle. So it will make improvements but not much. So if I have way too much time on your hands and want to spend well over double the time it takes to reload a accurate round and also throw lots more money at it all to go from .36moa to .34moa lol it helps! Most people who do this have all but perfected their loads and really are just trying to pull everything they can out of it to get every bit of accuracy. Most of the accuracy will come with consistent charges and a good seater die. I use a Redding competition seater with a mic and it seats it so perfect every time there is never a bit of visible runout! So that means less than .003” runout on every round. As long as u have that and consistent loads and consistent seating depths and try to stay within
.01” of the lands for seating but even that is not huge. I have a AR 308 that must be seated .05” off the lands to fit in mag and it shoots .375” groups all day. That is a 18” barrel (Kreiger) and it is very accurate. That is with 175 SMK and those are very forgiving on the “jump” to the rifling! I would not dare try that with a Berger
@@shawn01707 For the most part what you say is true. I'm a blackout fan. Spent 223/556 cases are my case source which I shorten and form. Depending on the brass manufacturer it may wind up with a thicker neck. So this post is right on target for me. I don't want to jamb a case in my rifle.
@@shawn01707 If you do your load development with non-neck turned cases and you decide to neck turn, you will have to re-do your load development. You will also 100% see a difference at 100 yards. Boomers don't know shit.
👍💯🇵🇰💯👉🇵🇰
Can’t hear a single word you said.