I'll buy a few boxes or several different types of ammo when I buy a regular bulk order. I try them out to make sure there are no major issues with that brand and if all goes well I buy in bulk the next go round. I have shot every brand of steel cased ammo in .223/5.56 and like stated above its dirty, there is a chance for a stuck case, there is a coating on the case-I have yet to see any of the lacquer coated ammo in any brand. Most steel cased ammo has a plymer coating on it, but no lacquer. Its not as accurate, it is a little tougher on your internal parts, but the cost savings on even just one case of steel cased ammo will buy all the needed replacement parts and then some. So needless to say I shoot steel in my AR most of the time at the range, but my a problem arises mags are loaded with brass. If I were to do any practice or carbine coarse I would buy a case of steel and have a blast literally.
