Switching from 270W to 25-06

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20 November 2008, 14:44

wildboar

Switching from 270W to 25-06

Hi, I'm planning to rebarrel my Ruger M77MKII cal. 270W with a Lothar Walter 25-06 (Imp?) barrel; my questions are:

-Will I experience feeding problems? (I don't think so)

-Is 1-10 a good rifling twist?

Thanks.

20 November 2008, 16:05

jeffeosso

no measurable difference in the rounds...

i wouldn't go improved, though i think that the 257rob will do whatever the 25-06 will do. with 1/2 the felt recoil

1:10 is mebbe slow if you are ever going to want to shoot barnes or if you have any old HEAVY .257 bullets...

opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com

20 November 2008, 16:09

vapodog

quote:
wouldn't go improved

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20 November 2008, 20:06

ramrod340

quote:
wouldn't go improved

I agree. I have my own wildcat much like a Gibbs case. I gain 10-11% capacity compared to the 4% from the AI. In a 24" barrel I simply burned more powder for pretty much the same velocity. The normal 25-06 has plenty of capacity for a 25cal. A normal 257Bob loaded to 6mm pressure gives up very little to the 25-06. If you simply want an AI case the Bob improved is hard to beat.

I agree with Jeffe if you are going to shoot 100gr or less the 1 in 10 should work except for the long shapes like the Barnes. I would stick a 1 in 9" and be able to shoot anything. You will not give up anything by doing so.