RE: 2F or 3F in .54/.50
I use 777 3f in my .50 CVA Greywolf sidelock. I tried a lot of different loads before settling on this one. 70gr 777 3f and a Great Plains HBHP 385gr conical. I get a 2" group at 100 yds with this load and it is devastating on feral hogs and has dropped a few deer as well.