I tell ya IMR 4198 doesn’t disappoint in 45-70. I’ve mainly loaded 300gr HP with it but decided to try the 325gr FTX this year seeing how I have about 100pc of brass for it. I was low on primers so decided to start at what Hornady claimed was 2000fps to match factory ammo. I started at 44.6gr and that got me the 3 shot bullseye below. The warmer I went the more it opened up and the more I took a beating. It also shot same POI as factory FTX and the 300gr HP. Gun season starts next Monday so we will see how it does. I’m pretty impressed to say the least. Now debating on loading some 44mag, 240gr xtp with IMR 4227.