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View Full Version : so who's got some fun little pet loads for TAC?


skyugo
03-12-08, 23:33
i've got some 55 grain FMJ's and some 75 grain hornady match BTHPs.

last time out i used 25.5 grains behind the 55's and 22.0 behind the 75's.
POI was about 1.5" low with the 75 grain bullets.
16" middy. 1 in 7 twist.
markm
03-13-08, 08:48
I just run 24.5 gr of TAC with my 55gr FMJs.

Works great in the carbine, Shorties, and Rifle.
skyugo
03-13-08, 18:45
I just run 24.5 gr of TAC with my 55gr FMJs.

Works great in the carbine, Shorties, and Rifle.

any idea what that chronos at out of a 16?

i think i might make a bunch of experimental rounds tommorrow. goin shooting with my buddy who has a chrono on saturday. :cool:
Kurt Reifert
03-13-08, 19:01
I use 24 grains of TAC with a 55 grain fmj and get 3000 fps out of a 20" barrel.
They work beautifully in a 16" gun as well, but I didn't chrono them out of the short gun.
markm
03-14-08, 09:59
any idea what that chronos at out of a 16?

i think i might make a bunch of experimental rounds tommorrow. goin shooting with my buddy who has a chrono on saturday. :cool:

I sure don't. I was basing my load off of the data sheet for TAC. I tried Kurt Reifurt's 24 grains as a starting load, but I was getting slightly weak cycling in my guns. So I kicked it up a half a grain. I'm pretty happy with that load.
MarshallDodge
03-14-08, 12:19
I have been looking into using TAC but have heard that it is dirty. For me, this is a big issue, so I typically use Vitavuori powders.
skyugo
03-15-08, 09:01
I have been looking into using TAC but have heard that it is dirty. For me, this is a big issue, so I typically use Vitavuori powders.

i've heard it's one of the cleaner ball powders, and that seems to be true.
skyugo
03-15-08, 09:03
I sure don't. I was basing my load off of the data sheet for TAC. I tried Kurt Reifurt's 24 grains as a starting load, but I was getting slightly weak cycling in my guns. So I kicked it up a half a grain. I'm pretty happy with that load.

i based mine on the sierra reloading manual's AR15 section. 24.7 is the min. they recommend.

i'm goin to chrono all these in a bit. i'll report back. :D
markm
03-15-08, 10:36
It seems to be cleaner than 748.
skyugo
03-15-08, 14:39
ok..

22.0 grains tac, 75 grain hornady- 2450 fps ave.

23.0 tac, 75 grain-2570 ave

25.5/55 grain- 2750 ave

26.0/55 -2900 fps


fairly consistent velocity was had with the tac.

my 1 in 7 twist lightweight cmmg really groups nice with those 75 grain bullets. seems like they'll drop like rocks though. they hit 2" lower than my hot 55 grain loads :eek:

military 63 grain ammo (lake city) chronos just a touch over 3000.
so .223 loads are pretty light for 5.56 guns i'm thinking.... :confused:

that said, i primarily punch paper, so i'll probably stick with the 25.5/55 grain setup for most of my shooting. seems to group pretty nice and it's quite economical.