Anyone already loading lead free projectiles for pdogs and squirrels? I am looking at the Barnes Varmint Grenades in particular. Has anyone had good luck with these or is there anything that I need to do differently. I have some on order, have been to the Barnes website, but does anyone have any experience in say .223 to .220 Swift velocities? Accuracy and explosiveness are what I am looking for in a varmint bullet, maybe another brand? Thanks, Ed