I use h4198 in my .444 and .45/70, it does fine enough for my shooting. Cat sneeze loads with Unique are scary accurate from my Marlin, my last time shooting I had 7 shots at 50 yards went into less than .600, gonna try 'em at 100yds soon. These light loads are similar to the .44 mag or just shy of it. Very enjoyable to shoot with 240gr XTPs. .DT