...that your reloads will do MUCH better. If the 9mm CZs are a good indicator for the .40 versions, don't be afraid to work near the hotter end of the safe spectrum. The 9mms love higher pressure ammo. Work loads up for safety, but don't be afraid to try the hotter ones. I wasted a lot of time with my 9mms trying to make various "start loads" in different powders shoot well.