Re: Reload 17 for 300 WSM
Unless your gun is a single shot, IMO your are wasting your time measuring the lands and working from there as the round will not fit in the mag.
Got to ask why?
Start at max magazine COAL and work from that.
the barnes are designed for jumps and big ones, at .03 and similar intervals you will wear out 5 barrels.
Make big jumps and then fine tune between the best nodes for an acceptable group for what you need. If .5 MOA works for your gun as hunting rifle, then do you really need to get to .4?