yeah I suspect it might be the ammo..I have maybe 5K through it now...
The mag followers have cuts and indents in them..I think Mo knows what I mean, seems bout average for these mags. The ammo doesnt feel light loaded, slide always locks out on last shot.. I think its either ammo related or its mag followers... I buy these off a local guy named Frank who supplies alot of ammo to many people..his stuff is generally considered high quality.
I have a few hundred rounds of Federal around, and will try them in the next few days to see if I can isolate it to reloads..
thanks for the help