Hey j427x-didn't you say you had a model 1 7.62 x 39 ar that ate anything you fed it? I have one and heres a question. It will shoot russian steel ammo but the damn thing won't shoot american brass! I have had a few ftf's with dented primers on russian but with good brass it will fire and sometimes stove-pipe or fire and eject but not load the next round. Using good c-products mags. Bill
my wilson carbine h-bar barreled 7.62x39 had some serious stovepipe issues running wolf and any other type of ammo. it was the last wilson DTI had in stock during the obongo panic.
i did have to enlarge the gas port one size and it runs fine now. it is the one with the too tight (match)chamber that required some adjustments on the extractor springs and removal of the o-ring.
on a 7.62 you may have to trim the back side of the bolt some and or add a wolf extra power hammer spring. this is because the 7.62x39 ammo has hard and deep set primers. it needs a little more firing pin travel than a 5.56/5.45 does.
the wilson runs fine now it just required a little tuning to get right.
now that citadel 7.62x39 was super easy to get running --nearly as easy as a regular 5.56 barrel.
DSG has the wolf extra power hammer springs for $3 if you need them.
now on the USA made ammo not running --you got me there i never seen that before. could you have a bad batch that is short loaded?
it might pay to try another brand of ammo. winchester has all ways worked for me.
usually the short stroking is a wolf thing--LOL! keep me informed on how it goes.