psteinmayer wrote on Jun 10^th, 2019 at 9:39pm:

Well, since I already work with H4895 and have a significant amount on hand, what would be the advantage, or disadvantage of the H over IMR? . . .  I'm betting the barrel would be much easier to clean! . . .

Never having used H4895, I can't really say more than that most folks claim its performance is reasonably similar to IMR4895. Being that Hodgdon now owns the IMR brand, I wonder if there's any difference today except the label.

Cleaning unburnt granules out of a barrel is easy. Cleaning them out of the action of an autoloader is a pain in the butt. (Learned this playing with moderate charges of 4831 under cast bullets in an M1 rifle. Yuk!)