adephue, HA! FUNNY< I HAD THE same thing with my ar-50 . I had a case of 50 \bmg and a 30-06 got mixed in, No not really, actually , i have heard of this happening, The bad guys over there in the hot, desert country have done this, ( supposedly) When they have run out of ammo, they have (reportedly) couldnt figure out the Dead US soldiers rifle, ("WHAT THE HELL IS THIS THING???") ann managed to unload the magazine into a AK. Aint saying its great, but hdve heard that it works ( in a pinch) But they aint worried about a little Breech blast if they are ready to die in the name of there GOD now are they.