When I go out for a little shooting I never really put more then 200 rounds through them. More often its less than 75 rounds, because I usually take at least 2-3 pistols out. I generally go about 5 range sessions before breaking out the cleaning supplies. Every 2-3 range sessions, I field strip and give a good wipe down and touch up on the oil. But after every range session Ill give the outside and mags a good wipe with a rag to remove the residue.