Re: 1891 Argentine Mauser
poobear, Is it a rifle or carbine? makes a big difference when you're shopping for a stock. Finding an unmolested stock is like trying to find hens teeth. There's a guy that will be at the Big Reno Gunshow in April that had two on his table for sale last time I went. Another option is a member on the Surplus Rifle forum that has a stock duplicator, he's been turning out hard to find stocks for the members there. One catch, if he doesn't have a template stock, you'll have to find someone that has a good stock he can copy. His prices aren't bad either.
JLA, you're thinking of the 1909 Argentine 98 large ring action, an 1891 small ring wouldn't hold up long under those chamber pressures. 7.65 Argentine needs to be around 43,000 CUP, .308 Win runs about 50,000 CUP.
8mmman, email sent on the ammo.