First time trying AR Comp

[TNMTBik3r]

I have heard many people talk about AR Comp, but I never tried it. I finally bought a pound a few weeks ago, and loaded up some test batches to shoot yesterday. I WILL be buying more!

 

I loaded 7 batches, 4 using 69gr SMK and 3 using 55gr Hornady SPs. All 7 were 1" or better groups, but these 3 loads really shined. I may not even do any more experimenting, assuming I get similar results with my next 20 rounds of each load.

 

These are all 5 shot groups, fired through my 18" Wilson Arms stainless bull barrel off a bench using a Caldwell Tackdriver bag (front support, had no rear bag) at 100 yards. 

 

 

55gr SP, 23.0gr AR Comp, 2.230" OAL

5 shots into 0.661", minus .224 = 0.437" group

 

 

69gr SMK, 22.5gr AR Comp, 2.255" OAL

5 shots into .737" minus .224 = .513" group

 

 

69gr SMK, 22.8gr AR Comp, 2.255" OAL

This actually is the same group size as the 22.5gr load, but the slight increase in powder may have more potential based on the pattern.

 

 

I am loading up more of these to verify with multiple 5 shot groups, but this powder looks amazing so far. This Wilson Arms barrel is very accurate, and I have shot some good groups before but not had half inch groups with 55gr/69gr bullets and the same powder.

 

Who else here is using AR Comp, any pet loads that you would mind sharing? I may be replacing BLC-2 as my "go to" powder.

[z0mbies fear me]

I have a couple pounds of it but I haven't gotten around to loading any up with it yet. I might try to load some this coming weekend.

[AECS]

That is a Ramshot right?  The USNMT uses ramshot TAC behind 77g SMK to replicate issued MK 262 match ammo.  Ramshot is a very underestimated powder.

[Jct1911]

That is a Ramshot right? The USNMT uses ramshot TAC behind 77g SMK to replicate issued MK 262 match ammo. Ramshot is a very underestimated powder.

AR comp is Alliant(formulated to replace current powder with temperature sensitivity, either RL15 or 4064, can't remember). TAC is a great powder though and one of my Favs.

[TNMTBik3r]

I have used a few pounds of TAC and it is a great powder.
AR Comp is from Alliant and specifically marketed as for AR platform loads.

[tmauto769]

Tac is my favorite powder, but I tried a pound of AR-comp and really liked it as well.