I am casting out some 396 grain 45-70 with gas checks and am thinking of using H4198 as a go to load. I had went mid range to max on it and kind of a bruiser out of the Marlin Guide gun for a woman my size. I am going to be deer hunting and occasional black bear with it and wondered if anyone else uses the H4198 as a hunting go to powder. With jacketed bullets my husband reloads the Marlin 450 at almost max with imr 30301 and is way too much for me and downloading imr 3031 doesn't seem to back off the quick snap of the rifle. I've tried 31.5 grains of the 4198 and it's not too bad. Not sure about killing power and haven't had a chance to chorograph yet.