Stock up?Then I would stock up on Federal brass.
I still see Winchester brass available once in a while from vendors and the Federal would have to come from private sales and it's hard to find, but it's out there. When I sold my last wssm AR I gave the buyer the Winchester brass, but kept the Federal just in case I decide I need another one.Stock up?
Last I looked...HSM was the only place to get WSSM brass with Federal head stamps and they have been out for some time. I believe the last few thousand pieces from them, were bought up by one person, and he's poaching them on GunBroker.
However...when the supply is gone, that's really your best bet. Pay to play and plan ahead next time.
I had, and loved my 243 WSSM and a fella made me an offer I couldn't pass up. I let mine go just in time, because for 1.50/ea for brass...I would just let it sit in the safe.
HSM WAS selling it for .71/ea when their supply was ample and even that was high...but available.
I don't think I ever paid more than .45/ea and most of it was around .37-.38