230 FMJ with IMR 4227 starting load
Posted: Thu Feb 04, 2021 6:45 pm
Hi, I'm reloading 450 bushmaster for the first time and the only powder I could find locally was IMR 4227. I'm using Hornady brand 230gr FMJ RN bullets. I got an OAL gauge so I'm just looking for a starting powder charge. From reading through the posts here it looks like most people are using Lil Gun but I was not able to find any so I'm stuck with the IMR 4227. I was wondering if anyone has tried these bullets with the IMR 4227 and could recommend a starting load? The closest bullet in IMR's reloading data is the 225gr FTX which is calling for a starting powder load of 37.9gr and the the closest bullet in Hornady's reloading data is the 240gr XTP Mag which is calling for a starting powder load of 34gr. I was thinking of starting with something closer to the FTX since it's the closest in weight, maybe 37gr. Any advice would be helpful. Thanks!!