Does anybody know when Winchester made 7x57 Mauser ammunition with 139 grain FMJ's? Headstamps are simply marked WRA over "7MM". I pulled one to confirm weight.
I have a few hundred loose rounds and expect them to be corrosive. Just curious of the era and maybe where they were shipped to...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.