Home Forums Hunting & Shooting Hunting Rifles Converting A 7mmWSM To A More Available Chambering

With the problems getting brass I am regretfully considering rebarreling/rechambering to a more popular chambering. Is this something that is viable or am I pretty much stuck with what I have?

A 300 WSM ought to do it.

270 WSM will also do, and someone recently rebarreled their WSM to the new 6.5 PRC. I believe you can do the same with the SAUMs as well, but since you’re looking for ammo/brass availability, 300 or 270 WSM would be the most available choices currently. If I were you I’d just make 7 WSM brass from the more easily obtainable 300 WSM brass as it’s easily done.

This really isn't all that hard. A Sharpie will correct the headstamp...

And if a guy is really concerned with having correctly-headstamped brass, Hornady is now making 7WSM.

midway has eight different types of ammunition available currently....and you can by components to reload it so i dont see a need to rebarrel presently

I make my 7wsm brass from 300wsm brass

The op is making it sound like it's impossible to find 7wsm brass and ammo. It's not..

Thank you!!!
All I have ever looked for was just brass. Placing an order tomorrow.

I guess I was wrong. Glad that I was!!!

I had the same problem a couple years back. It's good to hear ammo is available again. Brass is still a bit of a pain to find if you want the correct headstamp. The last batch of 100 is Hornady stuff from Cabela's of all places. It'll be used to make enough hunting ammo for the rest of my life. Reformed 300 wsm brass is used for practice shooting. It works well.

I paid $2 for each piece of Win 7 WSM brass that I could get off the net. Fortunately, I now have enough factory new brass for the next two barrels.
Yeah it was worth it at the time because I love the 7WSM. Completely shot my Broughton barrel out and just had a new Bartlein installed.

Must be the firm entrenchment of the 7mm Rem Mag that has caused the commercial failure of both the 7mm WSM and the 7mm SAUM.

It kinda sucks because both those short 7mm cartridges are straight-up tits, as far as I’m concerned, and the best of the WSM and SAUM commercial families.

A guy should be able to load for either if he has a desire to, though.

My best 7 wsm brass is stuff t made from Norma 300 wsm brass. Just run in the sizing die and form a little shoulder down the neck to head space on and fire a moderate load. After that it's good to go for 4-5 loads then aneal the neck and shoot 4-5 more times.

Bb

The 7mm WSM is a great round; just buy a goodly supply of brass, nurture it, love it, take care of it, reload it & live happily ever after.

200-300 pieces of brass should last a lifetime................find a good load or 2, & leave it alone. You don't have to shoot a 100 rounds ever week with it; that's what lighter weight rounds are for.

MM

This makes two threads so far this morning where the OP is counseled to stick with what he's got and not spend a bunch of money.

A disturbing trend........

I bought 750 pieces of Bertram brass here last month for my 7 wsm....should be good for a while

And hardly anymore than hornady brass

https://www.grafs.com/catalog/product/productId/71171

Got my chuckle for the day. Thanks.

My initial thought was the same - to make a "not spend a bunch of money" recommendation. After some consideration and a little research, I decided that, if it were me, I'd ditch the 7mm WSM. The 7mm WSM is not well supported by manufacturers and never will be.

A rebarrel or rechamber/rebore to .300WSM are both viable options. If a rechamber/rebore, the barrel would need to be set back about .24" minimum to clean up the chamber. Another option would be a rebarrel to 6.5 PRC.

If it turned out to be cheaper to sell or trade to get a new rifle, that is probably the route I would take.

What kind of “support” is missing?

New off the shelf factory rifles..
Otherwise Coyote Hunter is rather clueless about both reloading and factory ammo options..