Hey folk got some question for you all. Have any of the stock manufactures come up with a good low cost stock for the Stevens 200? Also I saw a mossberg rifle that used ar mags can this be done with other rifles? I bought a brand new E. R. Shaw barrel in 223 I have shot very few rounds through this barrel I would say less than 100 I finally got some reloads shooting under 1 inch @ 100 yds. How many rounds would y'all think it would take to break the barrel in? Can I by some low cost ammo such as fmj s and break it in with those or what. Suggestions please.