155 ELD-Ms 308 Gas Gun Powders / Loads

[neeltburn]

Decided to pull out my 308 gas gun and get some more time behind it. I put it together in 2017 and have not shot it much. Specs Below. Initially I ended up shooting 155 ELD-Ms over RE-15. My supply of RE-15 is gone now and I haven't be able to resupply. That said I have Varget and 8208 on had as well as a small amount of TAC. What powders do you all typically run in your gassers for best performance?

Current Load ( This netted a MV of 2740fps which I was pleased with)

• 155 ELD-Ms
• 44.8gn RE-15
• CCI BR2s
• Lake City Brass

Build Specs

• Aero M5 Enhance upper
• Aero M5 Lower
• Aero BCG
• Proof Research 1-10 20in Barrel
• Gissele DMR Trigger
• Supperlative AGB
• XLR Butt Stock
• Bushnell DMR 3.5-21
• SAS Arbiter TOMB Suppressor. (Debating switching my Omega 300 on it worth the swap?)

Rifle with previous typical 5 shot group. I can tell I need to work on recoil management with this more. Been shooting a lot of Dasher and 223. I loaded up a test batch of Varget from 44 to 46gn and nothing shot extremely well. Some of that could be me, but most were pushing 1 to 1.25 inches.

 

[sheepdog697]

i think imr4064 is pretty solid for 168 and 175gr pills. That being said, if i was you based off of that group.... id try to find some more RE-15.

Is that one of their steel barrels or their carbon barrels? Also did you do anything besides plug and play with this barrel? Outstanding group

 

[tekmann2377]

I have shot a bunch of Accurate 4064, H4895, and IMR 4064 in mine under 155-168 gr bullets. All seemed to work similarly well.

I have also tried some 8208 XBR- but advance cautiously near max load as I have found this powder to be "peaky." I would personally try this one first.

Even though RL-15 is temp sensitive, I have also gotten great results from it and too bad it is so hard to find!

 

[neeltburn]

i think imr4064 is pretty solid for 168 and 175gr pills. That being said, if i was you based off of that group.... id try to find some more RE-15.

Is that one of their steel barrels or their carbon barrels? Also did you do anything besides plug and play with this barrel? Outstanding group

It is a steel Proof. Just plug and play and verified it was good with a no-go and go gauge.

 

[bobke]

Have had excellent results with Varget, 8208 and AR Comp with most all varieties of 155’s in an 11.25” twist 20” Schneider barrel, 210m, in annealed Hornady or Lapua brass.

 

[neeltburn]

I have shot a bunch of Accurate 4064, H4895, and IMR 4064 in mine under 155-168 gr bullets. All seemed to work similarly well.

I have also tried some 8208 XBR- but advance cautiously near max load as I have found this powder to be "peaky." I would personally try this one first.

Even though RL-15 is temp sensitive, I have also gotten great results from it and too bad it is so hard to find!

I have seen the same thing with 8208 in bolt guns spiking pressure up quickly. To avoid brass getting chewed up I try to stay off the top end if I can find something that will shoot lower.

Note edited: I try to avoid max loads on gas guns.