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View Full Version : IMR4198 vs H4198


ghh3rd
10-27-2011, 01:44 AM
I have a load for my 45-70 using IMR3031 that works well, but wanted to try one that calls for IMR4198. All I have is H4198. I see that the burn rates are nearly identicle. Are these two powders pretty much interchangable?

Thanks,

Randy
knifemaker
10-27-2011, 03:06 AM
No they are not, close but there is a difference in the burn rate. Go to the online Hodgon reloading data on your computer and you will be able to get your reloading data for both powders. I use IMR-4198 in several loads for my 45/70 powder and have found it to be very consistant in light to very heavy loads with great accuracy in three different 45/70 rifles.