Re: Ramshot Tac in 30-06?
I love Ramshot powders. Like you, I've achieved the best groups ever out of my 24" bbl dpms .223. I,ve shot 69gr and 77gr SMK'S with 24gr of TAC with dime sized groups. Like you said, It meters great and consistent out of my RCBS chargemaster.
However, I load for me and my brother's 30-06 deer rifle (both light weight 22" savage and ruger respectfully).
TAC would not be your best choice for that heavy of a bullet. If you like Ramshot try Big Game or, even better, Hunter (all ramshot powders are ball and meter great). Other good choices would be IMR 4350 (does not meter as well) or RL-19.
I have not shot 190's in either rifle. And have never shot either of these past about 230-250yds. They ride around in the truck, with the dogs, and the dust, and the mud, etc..
150gr MRX (me), 165gr SST (my brother), and 168gr SMK'S (for both, for fun, with the yotes' or any other enemy scavanger). I use Big Game for all these loads.
Hope you find somebody out there more usefull than me...