Going to have to start loading for my sons new Varmit rifle a Mossberg MVP 24" barrel in .223/5.56 1-9" twist. Ranging to 250 yards. My favorite small varmit bullet in .22 cal is the Hornady 55gr SP SX (super explosive) I use this in my 22-250 running at about 3400fps. I'd like to hear what you guys are loading for your long barrel .223's to splode the sage rats and rabbits. Wouldn't mind advise on Coyote loads as well. maybe something in the 68gr range.