My CMMG complete rifle 300 BO is about .3085 the way I measure slug from bore. My best load is Lee 312 155 gr. sized to .310. Amazing from good rifle stand it shoots less than MOA on days my eyes are good. Used all the powders recommended but settled on H110 ?? never quote loads off top of my head. Load everyday I have time and shoot most every day if I can get outside. I am lazy and have not chronographed this load but book says its about 1850. Me thinks.
ancientriflesmith
Jack of all trades, now down to only a few.