2 replies [Last post]
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Location: Alamosa,Colorado
Joined: 01/06/2003
Posts: 8
Rifle Twist

What is the best barrel twist for a 264 winchester magnum, if you are shooting 140 grain bullet.

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Location: Netherlands
Joined: 09/13/2003
Posts: 7
Rifle Twist

Quote:


On 2003-01-25 00:23, jsalas68 wrote:
What is the best barrel twist for a 264 winchester magnum, if you are shooting 140 grain bullet.

The best twist depends on bulletlenght and the velocity you will get. General:
Best twist = (caliber x caliber x 150) : bulletlenght.
That means: .264 x .264 x 150 : 1.045(?) = 10, so twist 1 on 10 inches.
RPM = 720 x V0 : twist in inches

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Joined: 04/21/2010
Posts: 47
RIFLE TWIST

I WOULD REFER TO THE VARIOUS RELOADING MANUALS.

THEY KNOW WHAT WORKS.

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