I've used H4198 (not a fan, too fast burning for the gas system) and H-335, which I like quite a bit, as does my rifle. Just ran out of is while completing some late night reloading. What do y'all like to feed your ARs? The powders I'd like to hear a bit about are: -BL-C(2) -IMR-4895 -H-4895 Thanks, and happy holidays. Wanna kill these ads? We can help!