Stubble, always bucking the trend

. Hey, have you ever measured the thoat on your 300RUM with certain bullets with a stoney point? Also, what COL are loading 180gr too. I am seeing the sizzling velocities too. Here's the deal. I watch my chrono, and see these monsterous velocities, but it seems I get decent groups at max load. But am scared to go any further. In other words, my groups do go down some getting close to max. I am used to best accuracy about mid ways thru a powder range. Maybe I can go up a tad past max with RL25. Do you see this Stubblejumper? Are you at max loads?