I used MagPro, Norma MRP, and Ramshot Magnum before settling on RL26, which is now made from unobtainium. I shoot 168 TTSX over slightly less than a max load of RL 26 and Fed GM215M primers in Weatherby or Norma cases @ 3,280 fps if I recall correctly. Never a run-off or recovered bullet. If I exhaust my supply of 168 TTSX, I may switch to Barnes 175 LRX for a wee bit better BC.

Life Member NRA, RMEF, American Legion, MAGA. Not necessarily in that order.