H380 in AR10-DI

[rogn]

Running this question in 2 forums. Ive received a few big boxes of Nosler and Sierra BTHPs, the pipeline is slowly filling. I found a couple of jugs of H380 on the back shelf.My most recent experiece with it has been in MN 91/30s, where the results were near fantastic. I don't see many listing in the manuals for this powder, but where it shows up, the performance is pretty good. Has anyone used it in the AR10 , or does anyone know if the powder is compatible with the DI system?

 

[jonbearman]

What caliber is your ar-10 in?

 

[rogn]

Sorry about that, repeated the Q too many times and forgot. .308W, bullets 168-180 gr.

 

[jonbearman]

I couldn't see where hodgdon had any load's with that powder. Goto: www.hodgdonpowders.com

 

[rogn]

Theres some data in Lyman and Sierra, I just don't want to rattle the AR to bits.

 

[jonbearman]

If you have real data that has been published by speer or lyman ,then try some. Start low and work up slowly,look for pressure signs.KEEPING IN MIND THEY USED A SPECIFIC BULLET WITH THE PUBLISHED LOADS.The h380 meters like sand and shouldnt have any bad affect on your gas system.

 

[lloydx2]

Shot 380 in m1a back in the early 90 Shooting bullets 168 and up
Timing was good with midrange loads and shot well too. There are better powders.
But in a pinch You might be surprised. It is a little heat sensitive

 

[rogn]

Re: H380 in AR10-DI-result on my bench

Managed to do some shooting today, and worked up a load for today. Wind NNE5-12mph, about 1/4 value, temperature 30-32*F, and overcast. LC cases, wgt around 181gr, CCI 250 primers. Started w/168 SierraMK worked up from less than 45 gr. Had astonishing vertical at 340yds. as much as 8". worked up to 47+ grains and vertical dropped to < 1". Tried a 3 shot w Nosler 168CC and vertical was around an inch, horizontal 2 1/4". H380 seems a tad slow ,but the POI was superimposed over groups w/Varget and RE15, so I guess the velocity is similar. Ill give it a try w/ 175s in a few days. Just too unpleasant to set up the Chrony and dither around w/ it. Ill do that on the days when I can feel my fingers.