It had been a year or so since I shot my G20. But back then it was nearly 100% reliable. Few weeks ago I took it out to shoot and it jammed almost every round with UMC ammo...which was a huge pain because I was qualifying for level III security. My fault though for not shooting it before I went. I also had a box of reloads...that were random reloads. All 180gr but random brass and bullets. I think 3 combinations. I cleaned and lubed the gun with winchester clp before I shot it again. I didnt over oil it either. I went to shoot the reloads and the same thing happened. I know Im not limpwristing because I shot it from a rest part time with the same results. The most times it fired reliably is 4-5. Id like to shoot it once more before I send it to glock to make sure it wasnt an ammunition issue. Anyone want to recommend an ammo brand thats known to be reliable in G20? ...though I do have a .40 barrel comming if lw ever gets it here. I could see how that works as well since I have lots of .40 on hand. Any thoughts or ideas as to what it might be or advice would be appreciated.