TAC is a ball powder, but is generally considered to have decent temp stability - relative to other common ball powders - so I use it. I'd prefer stick powders but the better ones have gotten expensive and scarce lately. I recently picked up this Bul Armory Tac Pro compensated model and it is a beast.

Context Explanation

It is not finicky with ammo, shoots soft and flat, is extremely well built, very accurate, mags don’t cost a fortune and it costs about $1700 less than the comparable Staccato comped model. Howdy,I'm doing my ammo budget with the intention of building up to several years worth of components on hand.I have about 9k worth of components remaining for my Ramshot TAC load that has worked grea So far, TAC has been pretty atrocious in my WOA 20" Predator barrel. MP518 (Staball Match) routinely gets me under 1", but TAC has been more like 1.5-2.5" groups. Before writing off TAC altogether: Is it more accurate at lower velocities?

Insight Material

Most of my loads have been pretty hot, but maybe it likes running a little slower? I've tried 77/69/52 SMKs, 77gr Barnes Matchburners, 75gr Hornady BTHP, and ... Just 2 recent reviews of some of the more budget friendly "M193" on the market. First up is the PMC X-TAC M193. It is a touch shy of meeting the velocity spec at least with the uppers I'm using.

Final Conclusion

It's accuracy was on par for M193; 2-3MOA at 100 yards. Our second subject is from BPS (made in Turkey). It again fell just shy of the velocity spec, but it in turn showed us groups under 2MOA at 100 ... Had good luck running 23.5 grs of tac with 69gr noslers set to 2.250 will shoot moa. Some 308 TAC temp sensitivity testing. The temp range is a bit extreme for my use, as I don’t typically shoot in Death Valley or the North Pole… but interesting data just the same.

I've used TAC, mostly with Sierra and Hornady bullets in the 65-75 grain range in Colt 1 in 7" barrels. Flows well through a measure and generally provides good accuracy, but I've usually found H4895 will make at least slightly more accurate loads.