Must be AA-2230 is good in.223 AR rifles, eh ? Hard to find lately.
Glad I bought by the 8# jug.
I differ from Bob only in using H335 in my .223 instead of .458.
I just never saw the need for TAC when I had H335.
Funny how all the powders good in the .223 are also good in the .458 WM.
Bugger, I have added the COLs and some notes on powder compression:
Barnes reloading manual #4 has 450 grain and 500 grain loads listed. For 500 See below:
500 Barnes TSX FB TAC 62.5 1915 63.8 grains would be 100% LR/net fill at 3.340" COL with loose pour
500 Barnes TSX FB TAC 67.0 2040 COL 3.340", 105% LR/net fill with loose pour, compressed without drop tube
500 Barnes BND SLD TAC 67.0 2062 69.0 grains would be 100% LR/net fill at 3.310" COL with loose pour
500 Barnes BND SLD TAC 72.5 2194 COL 3.310", 105% LR/net fill loose pour, compressed without drop tube
TAC looks really good, best powder in the Barnes #4 manual for MV in the SAAMI .458 WM.
With #4 Barnes started showing the "Load Density (%)" , i.e. Loading Ratio (%) or net filling without use of drop tube, on their maximum loads,
and many of the older loads (pre-TSX) were reduced from what they had been in Barnes #3 where LR % had previously not been shown.
TAC was new for #4 listings, and it was the new velocity champ but was not judged the accuracy champ.
A 100% fill of TAC with any 500-grain bullet you like in a SAAMI .458 WM might be outstanding.
Please try it and let us know, in case we run out of AA-2230, AA-2460 and H4895, Varget and Benchmark ain't bad either.