TAC Powder for 5.56x45 and 7.62x51

Hello gents and maybe ladies,
I have 13lbs of TAC that Iwouldlike to use. I am almost out of WC-844 (probably used close to 40 pounds so far)
I lost contact with a reloader at my LGS. I do remember him saying that TAC works best for .............. I don't remember if it was lighter weight bullets or stuff like the 77gr bullets?
My goal is to use the most optional powder.

First firearm is a Ruger AR-15 M-4, 16" barrel, 7" twist.
What bullet weights does it do best with in 5.56x45? I have 55gr FMJ and SP, 62gr FMJ, 62gr SS 109( I treat it as 69gr for load data)

Will TAC work well in 7.62x51/.308, .30-06?

My 7.62x51 is a DPMS AR-10, 16" barrel, 10" twist
The bullets for my 7.62x51 are:
125gr Nosler
150gr Hornady Interlock and SST.
150gr FMJ
155 gr Match Open Tip
168gr Sierra HPBT
168gr Sierra Moly HPBT

THANKS IN ADVANCE FOR YOUR HELP!

Sent from my SM-G960U using Tapatalk

I use TAC in 5.56 with 69-75gr bullets, and in 7.62 with 165/168gr bullets. It’s my favorite powder in those 2 rifles.

I have only ever used it with those bullet weights in those calibers, I believe it is more versatile than that though. A quick scan on westerns web site should let you know which bullet weights it is suitable for.


JTD

I use TAC in my AR 223 Wilde. I have great luck with the 55 grain fmj and V-Max. I have also used it for the SS109 with good success. I have been using 23.1 grains on the 55 V-Max. I do not remember the charge for the SS109.