I think i'm safe in saying I haven't see anyone mention testing different jumps off the lands. it's the easiest, best way to fine tune your rifle's accuracy. Both the Barnes Bullets and Berger websites write about it. With a Barnes all copper bullet, start your powder testing at .050" off the lands; Barnes like to jump! With lead core bullet it depends on whether or not your shooting competition or hunting. If targets are in order Berger, IIRC, suggests starting "in" the lands and about .005" to .010" off the lands if hunting. Once you settle on or at least narrow down your powder charge Barnes Bullets suggest shooting more groups in .025" off the lands, even out to .250" off the lands....or more. Berger suggests .040" increments. Try it. It usually works!
Alan
