Faster Barrel Twist Rates | Precision Rifle Shooting with Todd Hodnett
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- Todd Hodnett of Accuracy 1st discusses his views on using faster twist rates on larger caliber rifles.
Todd Hodnett is one of the most respected, sought after and innovative long-range shooting instructors in the world. Through his school, Accuracy 1st, Hodnett and his team teach their students the highest levels of long-range precision shooting technique.
Check out Accuracy 1st here: www.accuracy1s...
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Thank you for expelling that so clearly.
My 6.5 PRC Browning X-Bolt Pro has a factory lapped, stainless barrel with a 1:7 twist rate for the heavier 6.5 bullets of 140 grains and higher. Browning is at the forefront for faster twist rates in factory rifles.
This is my opinion which I believe is true and if you care enough to research it yourself I believe you will reach the same conclusion too. The 1x10" twist rate that everyone parrots like a bunch of mindless banshees as being the standard and best for the 30:06 is incorrect unless you are shooting 220 gr. bullets and then you probably would use a 1x8" twist which our military used originally in the 30:03 rifle but because of the low-tech bullets of that day they were being deformed and destroyed so the military switched to the 1x10" twist rate to continue to shoot that weight bullet (bonded bullet = high tech bullet). When they switched to the 150 gr. they didn't change the twist rate, then switched to the 174 or thereabouts weight machine gun bullets for the rifle, and then switched back to the 150-grain bullet again and of course, they didn't change the twist I believe because by then everyone thought the 1x10 twist was proven and thus the best for the 30:06. It could be surmised as with my 1x10" twist 06, lousy groups using 150, 165 weight bullets. What are the results using the Greenhill, and Miller methods for determining twist rates, and even the Berger twist calculator for flat-based bullets say for the low tech 150-grain hunting bullets that I use? DA DA, 1x15" twist rate. Slower twists for lighter bullets with shorter bearing surfaces and faster twist rates for longer bearing surface bullets which are higher grain weight bullets. I have more research to do before laying out the money for a new barrel and gunsmith to put it all together, but that is on my plan at this point. So, the guy's statement that they have never seen an over stabilized bullet isn't true, run the calculators and use the aforementioned systems to figure twist rate and see for yourself what the actual twist rate is for your rifle and that goes for 223, 243, 308, and 6.5 Creedmore where the 1x8" is the correct twist for the 140+ weight bullets whereas in the old Swede military rifles they were 1x7.5" to stabilize the 160-grain bullets. Now days very few people actually do any research or look back in history to see what was used then, as if at this point in time we are infallible gods with a computer and google to tell us what is true. Are people actually that stupid (dumbed down) to believe that people in the past didn't know anything? Where do they think the foundations of knowledge that modern society, medicine, science, aerospace technology and etc. come from?
Precision shooting Jesus just knowledge’d you
The NSSF has always been a great source of information and education. The NSSF has inspired me to start Patches Tactical and pursue various competitive shooting disciplines. I love firearms like you guys, and hope to connect with you out on the range. Stay safe, and keep spreading the good word!
Exactly what I wanted to hear
Also depends on how you shoot,depending on the twist,whether your looking for longer distance shooting or more close range far as accurately hitting certain targets.Higher elevation an lower elevation plays a part on the velocity on the round your using,also factors if your using your own custom matched round,with a matched barrel.
Have you received any notices from the shooting public about magnum rifles with too fast a barrel twist key holing with long bullets? Or a phenomena with magnum rifles having powder spiking pressures with slow powders at the upper node of loading as if you were shooting a fast powder when shooting very smooth barrels that have quit fouling. And have muzzle brakes causing powder residue in the last 5 inches of the barrel? Close to when the barrel is breaking in? I have had this phenomena occur twice in one hundred rounds with all loading variables with in normal limits. I am a skilled loader of 42 yrs. Human error is very unlikely. A response would be very valued.
What if there is a way to increase the spinning rate of the bullet down the barrel without changing the rifling or the amount of gunpowder? Would that add power to the bullet?
Is there a table or a chart that shows twist rate to barrell length by calibre, with accuracy variation at various distances? I realize bullet speed at various distances is a factor that would need to be included in the chart. I am imagining an excel spreadsheet or something like that.
A chart like that would certainly be valuable if all variables and unexplained variables were the same. Unfortunately they are not. When a case is ignited and the powder burns, the bullet starts down the barrel and hits the atmosphere, the variables are so incalculable. I wonder if a spreadsheet like that is possible? We tend to want to simplify these things and put the answers on a spreadsheet for simplicity. Unfortunately ballistics is very in accurate at times. I wish they were not. Make it simple for me too. But it makes me have to think which is a good thing. Happy shooting , some food for thought in my humble opinion.
Wow thx~ a straight talker
Great simple explanation... As I see a 1 in 12 stamped on the box 100 gr 6.5mm ELD Match, I want to use in a 1 in 8 twist Grendel or maybe a Creedmoor... I will use
Thx for a demythification vid
👍👍👍
It is possible to spin to fast. I had a 30" Krieger with a 7 twist chambered in 6 creedmoor shooting 105 gr Bergers and 107 gr Sierras. The bullet jacket would get destroyed in the last 4 inches of the barrel leaving vast amounts of copper fouling that would take days to remove. Bereger told me to cut 4 inches off the barrel or go with an 8 twist. I made the same mistake with a 26" kreiger 6.5 twist chambered in 22-250 shooting Sierra 95 gr bullets. Copper fouling would build up in the last 2 inches of the barrel. It never shot better than 1.5 moa. I use the Berger twist calculator and only spin a bullet fast enough to stabilize at my elevation. This works better than spinning faster than needed.
CAN ANYONE GIVE A GOOD RECIPE FOR TO 700 YARDS TARGETS IN 308 AR10 ,,16 OR 18 INCH THANKS 2:48
I usually shoot 1,000 to a mile with the following loads just to plink and have fun, yes there are videos on my channel
Federal brass
42.0 grains / IMR-4064 / 175 gr Sierra boat tail hollow point
This replicates Federal Gold Medal Match.
Winchester brass
43.4 grains Ramshot Tac / 175 grain Sierra boat tail hollow point
This replicates Fiocci ammo
Lake City brass
41.8 grains / IMR-4895 / 175 grain Sierra boat tail hollow point
A known round for the M1A
I can keep going…you can see me shooting these on my channel.
Be sure to anneal every time, trim, chamfer and keep everything consistent.
Thanks for sharing I never knew that
That's really interesting, because Rex Tibor generally says to only use the amount of twist necessary to stabilize the bullet. He says that the bullet will track the arc of it's travel more closely and go through the transonic zone better. It would be interesting to see legitimate, scientific testing of both theories. I'm not saying either is right, I just think it's interesting that two very capable and well known marksmen have completely different theories on this important of a subject.
Rex is a 2nd grader compated to Hodnett
@@georgeshorter142 I don't know, Rex is very well studied in ballistic science. I doubt he's a second grader compared to anybody.
@@outlander330cc Rex is not to be a trusted source of ballistics information. His info comes from old military manuals that he just regurgitates for his videos and classes. In terms of real shooters in the Long Range Community, he is a laughing stock.
This is very interesting, thanks! I've never considered that I might re-barrel my rifle for a faster twist rate. This will be a fun experiment!
This was just one long sentence. Homie doesn’t pause.
Hello, I really enjoy your video and value your knowledge. Please respond to my previous question about magnum rifles and high pressure spikes and key holing with fast twist. I would appreciate some feedback. I have no answer for these phenomena. Especially the pressure spikes . Thank you. Look forward to a response.
I have a Remington 700 R5 24" 308
A question that might take a lot to answer, is the initial "wobble" for a faster twist repeatable and consistent?
It must be, if all downrange performance is better and more predictable.
im thinking of a 26 in barrel 1:8 twist for 300 win mag
Any suggestions?
Todd, BL and NV are the three wisemen of ballistics. I’ve never read, watched or heard anyone that can refute them with math and science. Any time I hear someone contradict them, it makes me suspicious.
Whoa whoa whoa, Todd. Isn't a fast twist rate on a super light bullet (for it's caliber) going to get shredded?
He just said "no" to that
Yes sir
I'm not saying that's the theory. My buddy shoots a .243 1:9 twist with 58gr Noslers. It works for him. Depending on how solid the bullet is. He changes barrels after every 1500 shots.
What kind of bullet is he holding in his hands? Looks like 20mm or something. What's the name of this round?
Do faster twists have slower muzzle velocity?
Douse anyone know if this channel answers questions?
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Amazing communication skills🤘🏻
So If i have a 1 in 8 in a 16.5" barrel the bullets should be more stable then a rifle with a 1 in 12 out of a 18" barrel?
Depends on what bullet weight you shoot and also the distance of the bullet jump. 150gr bullets will work perfectly in a 1:12 twist rifle. Some shoot heavier bullets in a 1:12 twist with the bullet touching the lands, causing the bullet to wobble.
How bout those barrels that start out slow then twist faster and faster toawrd the muzzle? I remember reading about those in a magazine long time ago.
They're called Gain Twist
Thanks for gettn strt to it
Thanks for the info
Some democrat out there is going to watch this and think that's the actual size of the round from an AR15 fully semi-automatic
does a faster twist shorten the barrel Life? lets say 1in 7" as apposed to 1in 9", will the 7 die sooner?
Erosion at the throat is where barrels die, unrelated to twist.
@@georgeshorter142 True. Instead of replacing the barrel, just cut off an inch of the throat, cut new thread, rechamber, and crown the barrel, then it's as good as new. We do it here in Namibia.
Sooooo good!!!
If Superman came out and he said:"I'm Gay", it would not shock me . If Batman came out and said :"I sleep with my bats in the cave"...it would not surprise me. What DOES surprise me that people here questioning Yoda himself on the shooting principles and ideas. Folks Todd is Jesus in our realm. Listen and follow the advice or start your own Cult. Thank you Todd for all you do Sir.
My You...Tube. most of these guys questioning Todd are idiots. Their man pride will keep them from reaching a high level of marksmanship, ie, they already know everything.
WV Long Shooter I think questions is what put a man on the moon. Certain belief without any question is questionable!
My response is directed to My You ...Tube as well!
Gunslinger I agree.
WV Long Shooter As we question we learn. Thank You for your response.
👍🏼👍🏼👍🏼👍🏼
Thank you Sir. Always pleasure watching your videos. See ya at the Next Shot Show..
I'm a proud owner of a 20" Faxon
Heavy Fluted, 1:10 twist rate Chambered in
.308 win on an AR-10.
I'm currently in using Federal American Eagle 150 grain 308 ammo & would like to know if that barrel is able to handle 185 grain ammo for long distance shooting?
I have a 20 inch 1:10 ballistic advantage that only seems to like 175s so 185s should work too I would think but I’m no expert
This is extremely false, your bullet does not get more accurate over time. It as been proven by shooting at wax paper at 100 yards and the bullet impacting 600 yards. Todd seems to be wrong the more I learn about shooting. Heres a thread where Bryan Litz tested this theory.forum.snipershide.com/threads/how-can-a-rifle-shoot-poorly-at-100-but-well-at-1000.6986710/page-3