a guy here at work has an old walther ppk/s 380 that doesn't feed well, it ejects the old case but when feeding the unfired in it almost is like a two stage loading, it'll go partway, stick for a second then chamber. the recoil spring feels ok, plenty of pressure when pulling the slide back, the feed ramp looks smooth, no nicks or burrs, the gun is clean and I tried different ammo. any suggestions on what to look for?