What gun do you have? What ammo do you have? Are you an experienced shooter?
I'm glad you are experienced, we can eliminate limp wristing then. What I am getting at is the specific rounds themselves. For example, my 380cc doesn't handle federal white box fmj rounds. I now run PMC rounds at the range. I'm not sure why, the Federal is 95 grain and the PMC is 90. I don't know if that is the issue or what. Mine seems to handle all the hollow points that I've run through it.I have a .380 thunder. I shot two zombie rounds, just to see if it could shot them. And I shot 50 brass rounds. Yes I'm experienced