Twist rate
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Twist rate
Will a 1:18 twist be able to handle a .450gr Bullet
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Re: Twist rate
That would depend on the caliber.
George
George
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Re: Twist rate
Yes, that should work just fine. These days people want to go to faster and faster twists to stabilize heavy bullets. The original 45-70 twist was 1 in 22 and that stabilized the military's 400 and 500 grain bullets. It still does today. A couple of years back I had a Peabody rebarreled with a 1 in 22 twist as I wanted to shoot a 330 grain bullet, but it also works fine with my 420 grain bullet. The 45-70 Sharps I shoot most often has an 18 twist if I remember right and it will drive tacks at 100 yards with the 420 grain bullet. Last time I looked, I think Shiloh was using an 18 twist these days.
Good shooting,
George
Good shooting,
George
- bpcr shooter
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Re: Twist rate
just to be clear, weight has nothing to do with twist. Length is what is important. you should be fine out to 1.40in or so in a 18 twist.
matt
matt
NMLRA Member
Winnequah Gun Club Member (Lodi, Wi)
WIFORCE Member
SCI Member
Winnequah Gun Club Member (Lodi, Wi)
WIFORCE Member
SCI Member
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Re: Twist rate
i think I remember that in the Buffalo and later Creedmoor days 1in 20 was kind of standard for 500 grained PP bullet in .45 caliber. I have one each ,1in 18 and 1in 16, 45-70s and either will stabilize my 530 grain PJ Creedmoor to 600 yards testing. I'm quite sure the same would be true to at least 1200 yards but have not been able to shoot that far to test .
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Re: Twist rate
1 turn in 18" will pretty much handle a bullet up to 1.450" long, possibly 1.460".
bruce.
bruce.
ventum est amicus meus
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Re: Twist rate
Yep, what Bruce and Matt said.
Sometimes you get the chicken, and sometimes you get the feathers!
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Re: Twist rate
That is technically correct how ever the rub comes from the fact that more weight increases length through mass which is inescapable unless you plan on shooting wad cutters to 1K.