Searching for cleaner subsonic blackout

[JJE76]

I've had pretty good results with Berrys 220 grain and 1680 but it's dirty! Picked up some VV N120 kinda looks like 10.8 at 2.23 is a good starting point. Anybody have good results with this powder. Shooting out of10.3" Tri Arc with a can. Thanks for any feed back.

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[DizzyJ]

Following

 

[JJE76]

Loaded 10 each of Berrys 220 2.23 oal, 10.8, 10.6 and 10.4 of VV n120. Range tomorrow, I'll report back.

 

[JJE76]

Loaded 10 each of Berrys 220 2.23 oal, 10.8, 10.6 and 10.4 of VV n120. Range tomorrow, I'll report back.

Went to the range all functioned, 10.6 seems like a good number. Wished I had a chrono but all seemed quieter then 1680. About the same accuracy.

 

[Ben B.]

I call 1680 "ThunderPowder". It gives the most reliable function in ARs, but is the loudest powder I've tried for 300 BLK subs. I hear similar report from others.

4227 works pretty well for subs in ARs and is quiet.

 

[Saladfarmer]

try Lil gun

 

[jkor]

Ive been using RL7

 

[BrandonQuixote]

10" with WC680 around 12.0gr depending on the weather keeps me at 1050-1080. Relatively clean, compared to my suppressed 5.56 guns.

 

[agbrownmc]

I have written up a couple threads on 300 BO subsonic and various powders, primers and bullets. My go too easy, consistent, quiet and accurate plinking load is 220 berry's + starline brass + CCI small rifle primer and 9.0grains H110. It meters very well. I can crank them out on the progressive. Usually about 4 rounds per minute. I also like I4227 for similar reasons in the progressive. Both of these are much much quieter than 1680. And 1680 is almost as dirty as they come. I have a couple 5# of 1680 just because. But I don't use it unless I'm out of my others.

Side note, Alliant Red Dot shotgun powder will blow your mind. Just off memory alone I think it was about 5.0 grains. Nearly full case fill. And crazy quiet. Sounds like a staple gun.

 

[Ben B.]

I did 3.6 gr shotgun powder, I think it was Solo1000, with a 110 gr VMAX. It sounded like a desk stapler. Wasn't good for much more than schwacking bunnies or maybe light bulbs.