I'm looking at a Winchester 70 thats been converted from 270 Win to 270 Wby. What changes other than the bolt face would be necessary? I have not seen the rifle yet.

Make sure it feeds well.

quote:

Originally posted by wapiti22:
I'm looking at a Winchester 70 thats been converted from 270 Win to 270 Wby. What changes other than the bolt face would be necessary? I have not seen the rifle yet.

The very top of the shoulder of a 270Win is 10 thousands LONGER the a 270Wby.

If you have to reheadspace, you will want to set the barrel back. If you just leave it, its not a big problem. Will only be a problem 1) if you reload and 2) only if you try to fit reloads fired from this rifle into different one.

Let me re-phrase my question. What changes to the 270 action would have been done to convert to 270 WBY, other than open up the bolt face?

quote:

The very top of the shoulder of a 270Win is 10 thousands LONGER the a 270Wby

I show the shoulder neck junction as .002" longer on the Win. But no clue how the radius effects that measurement. The neck on the Wby is .305 dia vs .31 for the Win.

None of this would probably matter. Might have strange rings/marks on fired brass.

As stated make sure it feeds. to me in a 24" or shorter barrel the small extra velocity is not worth the extra powder higher priced brass and dies.

forgot to mention, it's a pre-64. Has a nice looking stock from the picture I've seen. Asking $700