Twist rate

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ChrisF
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Twist rate

Post by ChrisF »

Will a 1:18 twist be able to handle a .450gr Bullet
George Babits
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Re: Twist rate

Post by George Babits »

That would depend on the caliber.

George
ChrisF
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Re: Twist rate

Post by ChrisF »

A 45-70
ChrisF
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Re: Twist rate

Post by ChrisF »

A 45-70
George Babits
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Re: Twist rate

Post by George Babits »

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
ChrisF
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Re: Twist rate

Post by ChrisF »

Thanks George
ChrisF
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Re: Twist rate

Post by ChrisF »

Thanks George
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bpcr shooter
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Re: Twist rate

Post by bpcr shooter »

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.

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mdeland
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Re: Twist rate

Post by mdeland »

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 .
bruce m
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Re: Twist rate

Post by bruce m »

1 turn in 18" will pretty much handle a bullet up to 1.450" long, possibly 1.460".
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desert deuce
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Re: Twist rate

Post by desert deuce »

Yep, what Bruce and Matt said.
Sometimes you get the chicken, and sometimes you get the feathers!
mdeland
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Re: Twist rate

Post by mdeland »

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.
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