Re: 22-250AI vs IMR 4320,H-380,Varget,IMR 4064
LB has a point, don't try to reinvent the wheel. My rifle, .22-250, will out shoot, velocitywise, most .22-250 AI with 52 gr bullets, but I cannot get within 200 fps of AI velocities with a 60+gr bullet. It should be common knowledge that those bigger pills will buck the wind and thump varmints at longer ranges with greater ease. I know Hornady makes a 60 gr VMAX and a 75 gr too I think. I would at least try the 60 grainers starting a little under LB's load and see what you get. You got the extra AI horsepower; put it to use!