Stalker: maybe you got a bad one?
things ive read when these first came out ...
lighter ammo caused problems.
people limp handing them.
thats really the only things that seem to go wrong & thats all user controllable. got about 500 rounds thru mine & only had 2 times that i did the limp hand thing when we first shot it... learned to hold it like i meant it & never had any more trouble.
but ive also always used 40grn stuff.