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Bullet stability

 
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Old 01-15-2012, 11:23 AM
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Bullet stability

I'm going to be test some new bullets to see if they will stabilize in a specific twist. At what distance will I need to shoot to verify? Will 100 do? Or should I stretH it ouT to 200-400 yards
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Old 01-15-2012, 12:23 PM
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Re: Bullet stability

Quote:
Originally Posted by midwesthunter View Post
I'm going to be test some new bullets to see if they will stabilize in a specific twist. At what distance will I need to shoot to verify? Will 100 do? Or should I stretH it ouT to 200-400 yards
My experience has been that I start at 100 yards. If they are stable (goup well) at 100, they are almost always good at longer ranges. If they are not good at 100, and I know I'm at the edge or outside of the recommended twist for a particular bullet, I will try them at 300 and see how the perform. I have had cases where I do get a bullet stabilizing out at 200+ yards.
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Old 01-15-2012, 06:24 PM
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Re: Bullet stability

Measure your twist. Plug in the data on JBM's website for calculating stability. Then, you'll know if they will "stabilize."

Next, you can shoot them at 100, 200, 300+ yds to see if the accuracy is acceptable in your rifle.

-- richard
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Old 01-15-2012, 07:12 PM
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Re: Bullet stability

I have had loads that by judging at 100yards I would think were worthless that I knew were on the edge of the limit. Bullets were slightly keyholed at 100 yards while perfectly straight on at 300 with good accuracy. In my experience, bullets tend to stabilize more down range, even though velocity is decaying. Even if on the edge. I have only had one load that never stabilized and that was the old Barnes XFB 200 grain shot out of a 12 twist 308. They hit the target sideways at 25 yards.
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Old 01-15-2012, 08:28 PM
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Re: Bullet stability

Numbers say border line it will work. I'm hoping the higher velocity pushes it through.
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