If you mix different weight bullets in your magazine, would that have a bad affect at all? I put in 2 hornady critical defense 165 then 3 winchester white box 180 JHP then 1 hornady on the bottom. Hornady in the pipe. I heard that the 165 is lighter and faster giving you better accuracy for initial shots, then heavier grain once your zero'd in for a harder hitting grain JHP. That last part was my thinking but I might not be right. I use a shield .40 cal.
Yeah i'm a newb at firearms and just trying to get it right.