Could not get the velocity with Tac was accurate though. AA 2520 had velocity and accuracy and I have a lot of it!
Which is why I didn't include TAC in the loads tested in the Handloader article.
Over the decades I've been writing about handloading that while many handloaders brag about tiny groups, most are at least as interested in muzzle velocity, perhaps more so.
Have also found that many powders resulting in top velocities also tend to result in finer accuracy, so when selecting powders to test in a cartridge-specific article I do a search of recent, published data, to narrow down the potential "best" choices.
This turned out to be a good strategy as MANY more powders kept appearing every year. Otherwise I'd have had to spend months of range-time, testing every new Wonder Powder in every new Wonder Cartridge. I was still loading and shooting thousands of rounds each year, but otherwise couldn't keep up....
