Power-belts, I don't like to use load for kids so the lightest load I have ever used on deer is 100grains of RS with that load the Power-belt I first tried disintegrated on a does shoulder, if a friend had not dropped her with a PRB as she went past him we never would have found her, I have also left the pure lead bullets I started with behind they won't group good with a decent load behind them 100 grains is absolute max, I used XTP 250 grains for a while and they worked as long as you had a straight broadside shot but rarely exited. From here on its brass or bonded bullets and 110 t0 140 grains of blackhorn for the inlines and the good PRB for the 54 caliber with 120 grains of RS.