Anyone play with any 450 loads? Dies on the way along with some 250 grain XTPs. Planning on using my h110 but have access to some other powders to try. Just wondering what is working well. Shooting out of 20" AR. Thanks SB
250gr XTP would not be recommended in the .450 Bushmaster, it's designed for .45 Colts speeds, although it does well at muzzleloading rifle velocities.
If you want to use an XTP go with the 240gr or 300gr XTP/MAG otherwise use the 250gr FTX designed for the Bushmater.