Louisiana has a primitive weapons deer season which allows Handi in 444 Marlin. Have a 444 Handi and 8 year old grandson. Does anyone have reduced loads for 444 Marlin. What bullet, powder, primer, filler(?) combinations would give 44 magnum level loads he could handle. Familar w/ reloading 30 06, 7mm mauser, 257 bob, and 264 win mag. I have some different IMR and Hodgden powders, so using them would be a plus. Any help would be appreciated.