I use powder coated cast lead .356- 125- 2R bullets from a lee mold which are flat base round nose over 3.0 grains of titewad with winchester small pistol primers with a oal of 1.125" and they work great no pressure signs and they cycle my sccy cpx2 with out any issues and have a velocity average of 925fps. i have tested from 2.6 to 3.3 grains until my first pressure signs appeared they do recoil close to a standard factory round and are super cheap to load cost per round wise.