I use 27 gr of TAC with a 40 gr BT or V-Max now, but I have about 500 loaded up with 24.5 gr of H-322 that I need to use up. I shoot the 40 gr so it mimics the trajectory (out to about 300 yards) of my .22-250 with 50 gr bullets. My Savage .223 4x4 has a 1 in 9" twist and the 40 grainers shoot itty bitty groups from it. I used to use H-335 and got fine accuracy but had some temp sensitivity problems out in AZ summers. H-322 and TAC are temp insensitive. TAC meters like water through a measure.
