I have been using the factory reduced recoil ammo in my kids youth model 7MM-08 but they shoot terrible for accuracy. Was thinking of loading my own and try to improve things but need to keep recoil as light as possible. On hand I have some 120 gr Nosler BT Hunting and an unopened can of H4831SC. Do you think this powder is too slow for this load or is it worth giving it a try???? Thanks for your input.