What the hell is it with you people and what do you do to your guns?
Bushmaster M17s that hasn't been touched with cleaning equipment in well over 4000 rounds that is running 100% with normal mags, and 98% with beaten up USA brand mags. Bushmaster 16" w/ the phantom'ish brake, A3, and tube stock, with about 1000 rounds on it, only ran a boresnake through a few times for break in, running 100% and 99% with the beaten up USA shit mags. SKS and AK74(screw built), respectively, running 100% with about 4000 each.
ALL the above firearms, I use almost exclusively, WOLF ammo, and get same results from both Laquer AND Poly coated.
No, I'm not big on cleaning, only when A: accuracy suffers from fouling, and B: when function suffers from carbon buildup, which doesn't happen because carbon is scraped off by any moving parts in a normal gun [.22LR's seem to be the exception, from my experience]. Again, they're all very much running 100% even without the cleanings, and yes, I WOULD 'bet' my life on that.