Hey guys, pretty down and out as sold my Remington .223 i had customized this past year. Originally, purchased Rem 700 Sendero VSSF in .223 then had gun worked over putting on heavy Hart barrel and jewel trigger. Really, kicking myself in the behind for same.. Used for coyotes, prairie dogs, and other smaller game. Sooo, now am looking at building another gun,and, although i don't know much about it, the Winchester .223 WSSM has caught my eye for obvious reasons. Aside from ammo presumably being tough to get, is jury still out on this round?? Seems more appealing than 22-250, but then again i am not a walking digest of information on cartridges.. Have always been told that throat erosion is much more significant in 22-250 than .223, and would assume 223 WSSM would be worse than 22-250.If you guys were building a new one, what caliber would you use and why? Additionally, can remington receivers be purchased without having to buy a "new gun", and if so, where? thnx for the help.