I've been shooting 250 grain SSTs in black MMP sabots over 45 grains of IMR4227. The accuracy is as good as I've ever seen or heard for a muzzy. I have bought a box of 225 grain FTX bullets to try though. It'll be the same sabots and likely the same powder charge. I'm hoping results are as good as what I'm used to. So far that muzzy is responsible for a 200 plus mule deer, a 167 wt, a 76 inch stinkalope, and 2 calf moose. I've always wondered what the bullets look like after contact but so far they've all been pass throughs.