Chuck270- That seems like stout load for someone under 100lbs. Did he train and sight in with something lighter, or just get used to that load from the get-go? I have a bunch of 200gr hardcast that I use for 10mm pistol loads along with some blue sabots, Thinking that may be a good combo under a similar amount of 777 FFF or Black MZ.
fly-by, Yes, it is a stout load for someone that size and not recommended for everyone. If I remember correctly we started with the 240gr. but with Pyrodex RS at 70grians.