My son thinks he wants to try my muzzle loader this deer season. I haven't shot it for years, and can't find the owners manual. It is an Austin & Halleck inline. Will use 777, 50gr pellets, 250 and 300 gr bullets with sabots. Anyone know the maximum load for this ML. Not that I intend to shoot max loads, just want to know what NOT to load. Thanks, K Boomer