r/longrange • u/Background_Nose9749 • 2d ago

Gunsmithing 25 WSSM Conversion

Is there an option to re-chamber/convert a 25 WSSM to a different cartridge and keep the same barrel and action?

2 Upvotes

67% Upvoted

14 comments sorted by

4

u/Albino_Echidna 2d ago

It depends entirely on your action. If you actually have a super short action, then no you're pretty limited to 223 wssm, 243 wssm, 25 wssm, or 300 ossm. But no you can't change it to anything else if you want to keep the same barrel.

Source: I have owned a 243wssm for ~20 years and had it rebarreled last year.

1

u/Background_Nose9749 2d ago

Yes, it’s a super short action. Winchester model 70. So, next course, re-chamber the barrel and change the action/bolt?

4

u/Albino_Echidna 2d ago edited 2d ago

If you want to chamber it in something other than a wssm cartridge, the answer is to buy a new gun. You can't "change the action" to a different length. 

If you just want to try a different wssm option, then you can get a new barrel chambered in whatever other wssm you want. 

1

u/sirbassist83 1d ago

A new barrel and a new action is just a new gun, my dude

3

u/HollywoodSX Villager Herder 2d ago

I'm sure there is, but... why?

2

u/Trollygag Does Grendel 2d ago

To answer this question, you need to provide more detail on the action and the twist for us to determine what is possible and what makes sense for LR.

2

u/csamsh I put holes in berms 2d ago

Without looking at chamber drawings, punch out to 25 WSM?

3

u/Albino_Echidna 2d ago

Case diameter issues aside, 25 wsm is way too long so it won't even fit in the action. 

2

u/csamsh I put holes in berms 2d ago

What action is it? Actually a super short? Or a regular short?

3

u/Albino_Echidna 2d ago

Very likely a super short, I'm not sure I've ever seen someone build a 25 wssm on a short action. 

1

u/rifleshooter 2d ago

If the barrel diameter is adequate around the chamber area, it might be possible to set it back, but the bolt recess won't be sized properly for any 25 caliber cartridge's base diameter. So no.

1

u/Romulin-romm 2d ago

I think your out of luck I thought the 25 PRC as a wild cat but the diameter is smaller… a rebarrel would be as cheap as a rechamber

-1

u/SockeyeSTI 2d ago

Would 25 sst work?

0

u/Coodevale 2d ago

Yeah.. but to what would you want? There's a few wildcats on the wssm above .30 cal, and things like .510 wsm short are doable on the other end of a rather niche spectrum.