CZ93X62
Official forum enigma
I haven't used any of these enhancement dies to improve 22 LR performance. A few years ago I began using the CCI 'SGB' ammo in my 22s, and I noticed an uptick in stopping power on the ground squirrels I hit with it. I'm not sure that the Mini Mag HP ammo expands, but that little flat that surrounds the HP likely has similar effect to the SGB form (Small Game Bullet).