Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

[SGT TickleFight]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

I use hornady 150 gr bt with H4895 for my garand that shoots as well as factory ammo (federal amer eagle for garand). I bet their 55gr bt would get you there if you found a powder your gun likes (mine does well with reloader 15) although i am loading 70 gr loaded mag length and shooting 0.6 moa.

Are you crimping? I do not crimp even for my m1 - as i cannot trim consistently enough to crimp comsistent. +/- 2 mil trimming. Crimping is more important for MGs. I have not had problems with umcrimped ammo - u just need to use quality bullets so the case tension is there.

 

[kombayotch]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

No crimp...

These aren't match loads, I've got the 70 VLD and 77 SMK running great for that. I probably would just shrugged it off as cheap bullets if the UMC ammo didn't shoot so well.

 

[Grand]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

Komby: I get good accuracy in my 18" stealth using surplus BLC (its old) and 55g bulk cannelure bullets. Usually put 5 into 1"-1.5" at 100 yards.

 

[SGT TickleFight]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

I guess the point i wanted to make was hornady 150 gr bt gets me under 2 moa in my garand. You should try the 55 gr bt from hornady. They run decently cheap when bought in bulk.

 

[kombayotch]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

I did try the 55 gr. FMJ-BT WC... same result.

 

[244]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burleyboy</div><div class="ubbcode-body">I wonder how close the burn rate is on AR Comp compared to RL-15. I run a lot of RL-15 but wish it was a bit more temp stable. I'll have to try some AR comp.

Bb </div></div>

Alliant says AR-Comp is a slightly faster version of RL-15: HERE

 

[Shoots 700's]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

I would love to see the data on this for 308 175 grain match kings

 

[kombayotch]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

I ended up settling on Benchmark for the 55 gr. bullets.

AR Comp has about the same burn rate as H4895.

I don't shoot the 175 SMK... but, data is available from Alliant for it.

 

[Shoots 700's]

Re: Temp test: AR Comp vs. Varget (308 Win.) + 223 Rem

bought some AR-Comp and tried it with 77 grain Nosler CC. I started at 22.0 and ended at 23.4.

Velocity is as follows out of a 1-8 18" barrel

22.0 2617
22.2 2649
22.4 2728
22.6 2682
22.8 2716
23.0 2748
23.2 2718
23.4 2773

 

[bruddah]

bought some AR-Comp and tried it with 77 grain Nosler CC. I started at 22.0 and ended at 23.4.

Velocity is as follows out of a 1-8 18" barrel

22.0 2617
22.2 2649
22.4 2728
22.6 2682
22.8 2716
23.0 2748
23.2 2718
23.4 2773

Old thread I know, but still a good one. What did your primers look like @ 23.4 ?

 

[Ring]

Well, I tested AR Comp with Hornady 55 gr. FMJ and Remington UMC 55 gr. FMJ. Velocities weren't great and accuracy was terrible (~3 MOAish). Remington 55 gr. UMC ammo shoots amazingly well though... But the Winchester and Federal ball ammo doesn't.

Still searching for a load that is at least as good as the UMC ammo. Didn't have have much luck with H335.

try 26.5 w748

Sent from my Nexus 4 using Tapatalk

 

[Shoots 700's]

At 23.4 they were a little flat. I settled on 23.0

 

[Ren]

I know its posted on alliants site...but what are you guys loading for 175 smk's and 178 amax's? Ive shot those recommended loads and they seem a little slow.

 

[SWThomas]

The 0.4 - 0.8 gr. figure is for a stock CM, without any of those modification or precautions being taken.

Jesus! I would have sent that sucker back to RCBS for some work. I threw 50 charges of AR Comp with a CM right out of the box and only got 2 overcharges. And they were only by 0.1.

 

[SWThomas]

I know its posted on alliants site...but what are you guys loading for 175 smk's and 178 amax's? Ive shot those recommended loads and they seem a little slow.

Go with the recommended loads. You can creep above the max if you want, but be very careful and look for pressure signs on every round until you get one that shows the signs.

The reason why they seem low is because the burn rate is faster than powders like varget.