I have tryed many powders in .223 the powders that worked good in Deuce a few years back liked RL7,H322,Win 748,H335,H4198
I have tryed all these powders as well Benchmark they work quite well with the 53gr Sierra Match
To get sub 1/2" groups with 69 gr Sierra's 75gr Hornady HPBT or Bergers 75gr VLD the best results where with, Varget,VT 540 & RL 15
There are 5 of us that shoot every Sun Morning 3 Savages Model 12 and 2 Rem 700 all 26" barrels 1/7 to 1/9 twists. There is a lot of talk on sight how well 75 Amax,s shoot 2 of guys bought 600 count boxes and are now trying to sell them, they just don't work that well for us, all shooting Sierra's or Bergers if we can find them.
manitou