hello everyone im new here but not new to gunsmithing,been around guns for 38 years. i recently built a polymer80 glock 22 .40. using lone wolf lpk and upk,rock slide usa vented slide ,silencerco threaded barrel and rwb mag. have tried flat tip fmj and jhp brass case ammo and it jams halfway everytime. i have tried eveything i know up to polishing feed ramp. im stuck,any ideas?