Yea, they do. The only 6.8 mags available (right now anyway) are stainless. I like PRI waffle mags.Nope, the gun show was a bust.
Might be a good idea to decide what kind of ballistics you want in a cartridge and then go shopping.Theres also 6mmx45 and 6.5x45 that I've found out base on just necking the .223 up. I bet there's a .25 caliber as well just haven't run into it yet.