twist rate and 175 grain 30 cal pills

[Exodus343]

Quick question


can a 20" 1:12 barrel stabilize a 175 grain pill?

 

["HeysKSFirefighter]

Yea, easily.

 

[montgomery627]

Yes, I have a couple of factory 12 twist guns that shoot the 175/178's better than they shoot anything else.

 

[lrgrendel]

I shoot 175 SMK OUT OF MY 1/12 Rem 700.

 

[clmayfield]

It depends on which 175 gr bullet. For the vast majority of them, the answer is yes. I recommend getting Bryan Litz's second edition of Applied Ballistics for Long Range Shooting. It gives recommended twist rates for a variety of conditions. The answer is different at slower velocities at sea level (a 20" barrel could yield slightly lower velocities).

Applied Ballistics For Long-Range Shooting 2nd Edition: Bryan Litz: 9780615452562: Amazon.com: Books

 

[ronas]

I recall reading somewhere that a 1:11.25 twist rate was mathematically the best for a 175. I'm trying to find where I read that. If I do I'll edit post.