.257 WSM?

[awp101]

Ran across an custom TC Encore last night in .257 WSM. Near as I can tell it's a recent wildcat but the custom maker's name on the bbl doesn't list it anymore.

I passed due to the $700 price (and having no fun money helped ) but looking at the makers website, the bbl alone was 4 bills.

I have no use for the WSMs or WSSMs but the rest of the rifle was purty enough that I can see getting it and parting with the bbl...

Anyone else seen/heard of this caliber or read anything about it?

Thanks!

[Hobie]

Some makers weren't chambering for the short magnums because they almost all use a base case with a bigger case head. This increases breech thrust above design levels. Not to catatrophically fail, mind you, but to significantly accelerate wear.

I imagine it has the same relationship to the .270 or 7mm short mags as the .25-06 has to the .270 Winchester.

[awp101]

Thanks!

Here's a blurb I found:
http://www.realguns.com/archives/053.htm

IF I were to put it on layawake, I'd probably sell the bbl since I can't even find the dies, etc to roll my own. It sure was pretty though...

[blackhawk44]

What is not told is that the factories experimented with the .25 WSM and could not isolate the cause of occasional pressure spikes. Those spikes occured often enough to be a problem but could not be duplicated at will. They finally settled on the WSSM (short) case which did not display the same problem. Just something to consider. BOL

[6pt-sika]

I'm an advocate of both the Remington and Winchester Short Mags and as a matter of fact own or have owned six guns for them as well as one for a WSSM .

I am fine with the Short Mags in 270-338 and have often wanted a RSUM in 6.5mm but have never seen fit to tear up a perfectly good rifle to do it ! For the 25 caliber I am perfectly satisfied with my 25 WSSM .

As for the Short Mags I am flush right now with three . Remington 7mm and 300 Short Ultra's and a 325 WIN Short Mag . Might be nice to have another 270 WSM but not necessary since I have that 7mm ! Also that 338 Ruger Compact Mag doesn't sound to bad although I've yet to have one in my hands .

[awp101]

Perhaps the WSM could be rechambered to something else?

[Rafe Covington]

I have an encore barrel in 25 WSSM, very good shooter and have encountered no pressure problems. It will duplicate 257 Roberts AI ballistics in a smaller case using identical length barrels, both mine are 17 in pistol barrels. Works for me, can't say it will for anybody else.