I've purchased factory reloads that have caused problems. A few 9mm rounds from 2A had incorrectly sized brass. A batch from Freedom Munitions were underpowered. They wouldn't run in any handgun I had. The only weapon they would function in was a CZ Scorpion. It didn't take long to run through them with that. I think it's just because they're mass produced and got through quality control. I've never had any problems with the reloads my friend produces.