.300 Blackout Information

[outlook8]

Are y'all killing pigs with subs or supers?

[Jason Slocum]

Are y'all killing pigs with subs or supers?

Yes. Head/neck shots with subs (only), with supers I still head/neck shoot 90% of them, but body shots work well too.

Jason Slocum

[wilded]

Since I started shooting the 110 grain V max I carry it a lot more.

[MATTLESPI]

Yes you can suppress both super and subs on 300 blk. You will probably need an adjustable gas block to ensure the gun will cycle both subs and super. 300 blk is really going to be for close in shooting. If you plan on shooting more than 50-100 yds. You might want to get a flatter shooting round like a 6.8 spc. 6.8 is also great if you decide to go the SBR route later. If you are really trying to be quite on the subsonic, I would also throw in a JP Silent capture spring.

[kgrutzmacher]

Love my suppressed .300BO for pigs. I try to only take head shots and have only lost a few. AR cycles with both supers and subs.

[Gunnyart]

I have two. Both are SBR’d. the AR version hasn’t had a round down the tube in several years but the AAC Handi is my constant companion when I’m not bow hunting. It’s pellet gun quiet with my sub load and the Omega 9k and has never failed to kill with the 110TTSX supers. I only hunt to about 150 yards so YMMV.

[Chase4556]

If you are really trying to be quite on the subsonic, I would also throw in a JP Silent capture spring.

100% on the JP Enterprise captured buffer spring. Added one to my 300blk and it did make quite the difference. You never realize how loud that Bugger spring is until you are shooting subsonic suppressed.

To answer your original question. I run a 16” 300blk with both supers and subs. No adjustable gas block, but my supers are a smidge over gassed. Subs are pretty darn quiet. I have a bolt 300blk as well, and now days that’s mainly what I run the subs in, super quiet. The ARs diet nowadays is mainly supersonic loads. I handload and run the 125gr tipped gameking for supers and the Hornady 190sub-x for subs.

[geezer56]

Back to the 300 round in a 5.56. It had a 150 grain bullet stuck in the barrel. It looked about 3 inches long. Blew up the mag. Blew off the dust cover and blew out the left side of the upper. Bent the lower a bit here and there. Only salvaged pieces were the handguard and stock. Shooter had shrapnel in his right hand, a few beauty marks on his face, and a sizeable laundry bill. No major damage, but he did say Huh? a lot for several days. Sorry about not getting deeper into the reply, and being slow with this response.

[M16]

https://www.youtube.com/watch?v=RbfIkaNlECo

[okrattler]

300 Blackout is weak sauce. Get that new 8.6 Blackout. That thing looks sweet.

[El Paisano]

You may have already made up your mind by now, but there are several things that you should know to understand the comments. Otherwise, it will result in a lot of confusion.
Everything you hear about cycling is referring to an AR type rifle, so if you are thinking about one of those, pay attention. If not, disregard, because it can really spin your head.
In my opinion, you are limiting yourself if you use an AR because you have to limit yourself to using the powder and bullet combinations that will make it cycle.
I have a bolt action. If you plan to hunt with it, you will need to pay close attention to your ammo selection, and get hunting bullets that are made to expand at the velocities of the 300 BLK.
I have hunted deer and hogs all over TX for close to 60 years. Seldom have I made 100 yard shots, and most were under 50 yards. I would not hesitate to shoot a deer or hog with 110 to 130 grain expanding bullets traveling around 2000 fps. Think Hornady125 SST, Barnes 110 TACTX, 125 Speer TnT and 130 Speer HP, etc.
Subsonics are another matter. There are several good bullets made that will expand down to around 700 fps impact velocity, but they are expensive. The most cost effective have been the Hornady 190 grain SubX bullets, and they shoot good out of my rifle. Most of the ammo available on the shelf is not made for hunting.
Subsonics don't lose velocity as fast as supersonics do, but they have a pronounced trajectory. The trick is being able to tell the range of your target and to know the trajectory of your load so that you can make sure the two intersect. That requires a lot of serious shooting (aka FUN).
I load my own, and with the bolt action, I don't have to be concerned about cycling the action, or cartridge overall length. I have been working up loads that are vewy, vewy quiet (Elmer Fudd) and will hold a group together at extended range. That has been a challenge. While it is relatively easy to get MOA or sub-MOA groups at 100 with supersonic ammo, it is a lot harder with subsonic.
The Hornady and Starline brass that I bought, and the LC converted brass won't make it for subsonics because there is way too much variation. I finally bit the bullet and found some Norma brass. It is expensive, but not really when you realize that you buy 100 Hornady cases and may be able to use 50 after weight and neck thickness sorting, but buy 50 Norma cases and use all 50. For example, the Hornady brass had about a 5 grain spread in weight, and the Norma were all less that .6 grain spread.
The Hornady and Starline works OK for supersonic though.
Have fun.