Limp wristing is NOT a weak grip. It is having the wrist stiff enough to allow the action to work properly. If the wrist is not stiff enough, the gun recoils all together and the slide does not get the proper velocity to cleanly eject and chamber the next round.
So far I've used Rem UMC brass and American Eagle brass, happens with both.
Have a friend shoot it for you.
Its a compact 1911... Add limp wristing and anemic ammo.
It will be a jam-o-matic