Twist for 7x57 140gr bullets

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03 April 2015, 15:34

boet

Twist for 7x57 140gr bullets

I'm considering having built a 7x57 and intend to use some sort of portion bullet, depending on what the rifle finally likes best, of around 140gr. Velocity is a factor in stability also, I get that, but as a starting point, what twist rate am I looking for?
Advice most welcome

03 April 2015, 16:07

farbedo

I would go with 1 in 9". That is pretty standard, and does everything you would want in a 7X57.

You might ask to have this moved to the medium bore forum.

Jeremy

03 April 2015, 18:32

vapodog

quote:
I would go with 1 in 9".

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03 April 2015, 18:52

boet

Thanks guys. Sorry for posting in the wrong place

03 April 2015, 21:54

The Dane

http://www.bergerbullets.com/twist-rate-calculator/

09 May 2015, 01:18

Atkinson

All 7x57 should have a 1x9, time proven twist for the caliber. It will shoot all weight bullets made for it, or at least all mine have.

Ray Atkinson
Atkinson Hunting Adventures
10 Ward Lane,
Filer, Idaho, 83328
208-731-4120

rayatkinsonhunting@gmail.com

11 May 2015, 22:52

huffmanite

FWIW, have a Ruger tang safety and a Marlin XL that have both been rebarreled to 7x57 with 1/10 twist heavy barrels. Presently am shooting 168 gr Nosler custom competitions in them with pretty good accuracy.