Re: 300 win mag
OK, got my results. 68gr. 7828/220mk/cci BR primers. .010 off lands. YUCH!!! On the way up they tightened nicely until 72gr. produced .6"groups. Now Im 72.5 and waiting to try again. Not much for pressure signs at 72 so Im not to concerned about .4 over max. Results forthcoming.