I reload and shoot lots of ammo at practice. I have run a few hundred rounds thru each carry gun and have had no issues before carrying them. In the last "Gun Fighting Course" I took earlier this year, I shot 250 Remington 9mm +P Golden Sabers in the morning portion and another 250 rounds of Winchester +P+ Ranger T's in the afternoon. All functioned flawlessly. Clean ammo does help remove FTF's. When I clean my guns I go straight to the range to insure that they will fire when needed. My last QC check point is to chamber check all rounds that I shoot whether practice or those I carry daily.