Home Forums Hunting & Shooting AR and Tactical Rifles So who has worked with the .300 Blackout (.300/.221) ??

I am thinking of buying a CMMG upper in the caliber, and assembling it to an extra Stag lower I have on hand. The intent would be game up to deer with supersonic loads, and plinking/home defense with the subsonic loads. I gather Remington is selling factory ammo.

I have seen no ammo except subsonic. Some say you can shoot 300 whisper in the chamber, I think you can with no probs, I have seen 250 rounds boxes of some Hornady 300 Whisper. I have a 7.62 x 39 which is about the same, I have thought long and hard regards the 300ACC blackout, I just cannot justify it regards ammunition availability, flatness of travel, killing power on deer, or anything else.

if you walk into a store in Andalusia Alabama one can pick up a box or 3 of 223, not so much the rare birds 6.8 and 300ACC.

What then will you kill with the 300ACC that cannot be killed with a 223?

The Blackout and the 300 Whisper are essentially the same. Remington got it SAAMI'ed. The Blackout fully loaded with 125gr Ballistic Tips would be a deer dumper, much more so than a 223, IMO. It uses the lower and the magazines you currently own if you have an AR. I would get the upper and the suppressor from AAC, the can is also rated for up to 308win.

I realize its your opinion but I don't see the blackout as any more a deer dumper than a 64 grain power point from a 223.

Some places won't let you shoot deer with a 223.

I am building a SBR upper in the 300 BLK but have not loaded any rounds yet. I am waiting on my tax stamp to finish. It looks fun and great for a suppressor.

Why would anyone buy a .300 blackout (or whisper or fireball) for deer hunting with a host of better options out there for the AR? It's a niche round designed specifically for cans and/or subsonic shooting in areas where you don't want a lot of noise.

If you don't have those two restrictions, there isn't a single reason in the world to use this for hunting.

It's like owning a Porsche and putting a Hyundai 4 banger in it.

in my "theoretical studies" it did not seem much more than the 30 carbine a well reviewed cartridge with known results on many things.

It is a toy for me. Much like all the other gear I own.

I can understand that. It's an easy way to go subsonic. It's just this big marketing push on it when it's really a niche cartridge. I can see Remington killing the brass in a year or two like they do so often. Much like the 30 Rem Ar that made no sense whatsoever and is already entering it's death rattle.

that is a good point and I cannot disagree with you on the fun factor.

I am half toying with the idea of buying a place in the country, where a can might be darn useful. I already own an AR-10, and I guess the blackout and the 10 could share a can, should I need to deal with pests without disturbing neighbors.

I have a AR15T barrel on order from Armalite, so my .223 will become a target/varmint rifle.

I have another lower, which merits assembly. It will probably be a carbine, which could be pressed into a HD role, if required. I am also liking the idea of a gun that can be shot indoors without wrecking one's hearing.

But most of the time, yes it would be just a fun gun, interesting to handload. The 6.8 and the AR57 are under consideration as well, but they fill different niches.

AAC Really moved the development of this and designed the case to be resized mil surp nato so no neck turning. I bought 250 cases for $50 from a dude that whips them out on his Dillon. Rem should have rolled out the SAUM with a similar strategy, or 30 ar for that matter.

the silencer thing is a good reason to own one. Past that the much more common and 23 cents a round mil surp 7.62x39 makes a lot of sense.

Like Tex said, even with supersonic ammo, the can on a Blackout would be useful for a house gun. It probably wouldn't be ear safe inside a house but still a vast improvement.

I am waiting on a 30 cal can and thru reading decided that works well enough for the 223 also. Hard to make the 223 subsonic. So while I was at it, I thought a 30 cal upper makes some sense. I think I will have to get a 308 win too to fill out the lineup of subsonic stuff. I ordered one with a QD attachment so I have several rifles outfitted with the mount already. The can I have on the way will work with 7.62x39 also so I can go that route too.

making a 223 subsonic! that is a trick! They say the 300ACC with the big slugs will penetrate like no ones business up close, I would not mind having one but its ammo availability vs utility vs performance vs newness(bugs). The 300ACC does not bite, but its not that much greater to my way of thinking.

It is really just the 300 whisper which has been played with quite a bit. I have plenty of 308 bullets to play with too.

Really I want to shoot a coyote with one and see how it works.

it would be a magic powder to get a 130 grain going 2700 from that little 300ACC case. That right there would be really be something. Until then a 62 or 70 grain TSX will probably fill the void regards penetration for the 223.

Wow, somebody really has a hard on against the 300blk.

I think he is trying to convince himself he does not need one.