Re: 300 win.mag bullets
My load is a 180 Accubond with 75.5 grains of RL22 in a Frontier (Hornady case) ignited by Fed 215 gm primer. Velocity is 3150, standard deviation of 8, and 3/8" groups at 100 yards. Barrel is 24". Shoots great at long range. I have taken a spike elk at 830 yards, a cow elk at 615, a desert bighorn at 630, and another cow elk at 757! The 200 grain Accubond has an awesome b.c. though, and does have a little more energy with less wind drift. It is definetly worth a try!
If it's not far, it's boring.