We’ve run MagPro, 7977 and 8133 with 300 grain SMK’s. Ran 8933 up to 90.6 grains without pressure signs. It seems to be a much slower powder than it shows on the charts. We were in the low 2,700’s at 90.6. MagPro at 90.5 grains got us to the high 2,600’s. I’ll be trying some different loads with that. 87 grains of 7977 got us in the low 2,700’s. These were with a slow 26” barrel and your mileage may vary with pressure. We’re finishing a couple builds right now that should be better platforms. @SheepShapeAK you’ll probably see the FDE build on the Talkeetna range if you go out there after the middle of August.