field strip and check for debris/overgreasing and relube with any quality oil of your choice... seems your GLOCK doesnt care what you oil it with as long as you dont use too much and keep it out of the firing pin channel... a film in the barrel and a drop in the reccomended places i.e. guide tabs on frame, rear of trigger action etc. is all you need... wipe the mags but keep them as well as the mag wells dry... as far as ammo i also never have any problems with WWB... speer or remington are good too and the issue with reloads is the GLOCK barrel has a different type of rifling that isnt as sharp as say a revolver barrel... there have been reported problems with the unjacketed lead clogging up the barrel or bullets becoming stuck