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

foolish animosity for no reason other than an emotional attachment to something you have invested your money in!

I guess I don't know anything about the 6.8, but that does not stop me from getting past some hang up over "mine is bigger than yours". It just don't matter too me and they are all very similar, then the 6.8 seems a bit more powerful than the 300ACC which seems to be more suited to suppressors? Again if the 6.8 blows wind up your skirt more power too you. Maybe I will get a 6.8 one day as well!

I've added a Burris dot sight to mine, a better trigger on the lower, and found myself fairly unimpressed with it. It will do about 2 inches at 50 yards. These are the Rem factory subsonic loads. Certainly accurate enough for home defense, but with the original cartridge being known for fine accuracy I was expecting better I guess we'll see what handloads can do, with both subsonic and supersonic loads.

that's not bad AK accuracy however.

Actually, I have a Mini-14 that will beat it, too!

If it is a 4 MOA sight you are right in the ballpark. Is there any other 220 grain bullet traveling at 1000 fps that has a great reputation as a manstopper? I realize the 45 acp has a larger meplat (which I do firmly believe is a key component in stopping power) it will be interesting to shoot a few things with the Blackout to see if there is any correlation. I am pretty sure it will pencil thru but a 30 cal hole is easy to sew up in a coyote hide, and leave a lot of leaking. I will let you know, hopefully this winter.

Last trip to the range I tried a 10x scope, and it was running 3-4 inches at 100 yards, so I don't think it's optics.

I did notice this evening the quad rail was slightly loose, and tightened it up, but it's a free float model I'd be surprised if that was the problem.

I have a couple boxes of fireformed brass now, so I guess it's about to become a handloading project. I believe the 220 gr bullets are said to tumble when they hit something. Makes me wonder if in fact they are marginally stable at 1000 fps?

In any case, it's not accurate enough to suit me, so I guess it's now a project to get it shooting well.

how does the upper feed and eject? Who's barrel is on it? Have you shot any supersonic loads with different results?

function has been flawless so far, but I've only put about 40 rds through it. The upper is a CMMG, and I assume, their barrel.

and edit to add, no supersonic loads yet.

6.8 does not launch a 110 grain bullet at 2750 fps. People get those numbers, but they are loading over 55,000 psi.

If you want to load over SAAMI pressure in violation of normal industry practice, you can do that with any cartridge - 300 AAC BLACKOUT included.

Also, the BC of the Remington 300 AAC BLACKOUT supersonic bullet is listed by Sierra as 0.338.

300 AAC BLACKOUT is not compromised due to being subsonic compatible. The power level is limited due to two factors:

1. Being compatible with normal AR magazines.
2. Still having 30 rounds capacity.

For anyone who wonders why one would want this without a silencer - that is easy. It has similar power to AKs - the most popular assault rifle cartridge ever made - but is designed to be reliable in an AR and use normal magazines, bolts, and standard bullets.

As for why 6.8 is better than 300 BLK - 6.8 has some more power, especially with longer barrels and when shooting at a longer distance.

As for why 300 BLK is better than 6.8 - it uses normal magazines, normal bolts, and holds 30 rounds. Also, the UMC ammo coming out in November will be $12.99 MSRP, with an even lower street price. Most guys want the best home defense rifle they can also hunt with. That is not 223 in many states. Most guys don't want to pay 6.8 ammo prices.

You can think of 6.8 as like 10mm, and 300 AAC BLACKOUT as 40 S&W. The people who adopted 6.8 or 10mm had to go through a lot of hoops with the special bolts, magazines - so they want every ounce of power no matter what. 10mm people still call the 40 S&W the "short and weak." They are always going to feel that way.

300 AAC BLACKOUT has way cheaper reloading. New primed Remington brass is just 25 cents each at Midway - and if you want to spend even less, you can make it from 223 brass you find at the range.

Between brass being make-able from ubiquitous 223 brass, and using the hugely-popular 30 cal bullets - it is going to grow at a very fast rate.

Remington is going to support this - as there is strong demand for it, and has military customers. Besides, AAC (who I work for as project lead on this) is driving this - and we will keep support strong and prices low.

that is correct. SSA lists their 6.8 110 grain Tactical load at 2600 FPS. We can hunt with a 223 in GA so the 30 cal does not help me!

Well put - I have a 9mm Kel-tec S2000, which seems reliable and has some useful features, but has issues regarding optics mounting. It will work decently as a house gun. Deer? Ummmmm....not so sure about that...

I have a 16" AR10, which would be a dandy close range fighting rifle, and is nicely accurate - but I really don't want to shoot it in the house, even if I have to

I am hoping this Blackout works as well as you suggest, but 3-4 inches at 100 yards ain't good enough for me. I picked up a pound of Accurate 1680, so I'll work with the subsonic loads first, probably try 10-10.5gr with 220 Matchkings. Hopefully I can fix it without springing for a Noveske barrel

Just shoot supersonic ammo - it is accurate.

http://www.midwayusa.com/viewProduct/?productNumber=187667

We are shipping the bullets in these as reloading components next week.

In the same thread where you criticized the price of 6.8spc ammo, you recommend just shooting $34.99 .300 BO ammo?

Midway shows 18 different 6.8spc ammo's cheaper than that and 4 cheaper than the cheapest (and only other) 300 BO ammo available there.

Where's the cheap 300 BO ammo? Here's a claim by you last December:



How's that? I see Hornady 6.8spc ammo for $17.99.

Cheapest .300 BO ammo I see on the net is $18.89. Last time I broke out the calculator, $18.89 was not 48% cheaper than $17.99.

I know, I know, the UMC ammo check is in the mail for November, when it was previously in the mail for last spring. The biggest advantage you claim for the .300 Blackout doesn't even exist.

I've been fiddling about with one of these for the past couple of weeks and find it to be a good short range combination. Brass is easy to make from .223's, recoil is nominal with supersonics, nonexsixtant with subs, and accuracy is acceptable.

125 grain bullets will group about 1-2" with my current load which is surprising as this is the CMMG offering with the carbne length gas system and a 1-8 twist. I know that this will magnify at range but since I'd not shoot at anything over 200 yards away with it that is a moot point.

As has been suggested elsewhere in this forum, it really shines with subs. The Sierra 200 grain Matchkings at an average of 1,000 fps all went thru the same hole at 100 yards
(yes, suppressed) and the loudest sounds were the cycling of the action and the bullet hitting the target. It seems that my project is partial to Matchkings; I tried Nosler spitzer boattails in the same weight and they all went thru the target sideways...something to do with the length of the boattail I've heard it claimed.

This cartridge is not for everyone perhaps, but I like it. Hey, we all may need a quiet rifle one of these days, no?

That is true - but once it happens, we will be past that - and your argument will be up in smoke.

In November, there will be very nice 300 AAC BLACKOUT ammo for cheap - with sealed primers and massive cannelured OTM bullets.

$12.00 a box???

$12.99 MSRP, which means some dealers will have it for $11 or so.

I know the subsonic is $22.99 MSRP and Cheaper than Dirt sells it for $18 something.

I am wondering if a blackout upper will cycle some of the 30 30 bullets like the 128 grain Sierra FN HP, or the Hornady 110 grain RN. This would make it more effective 0-100 yards on deer size animals. On the other hand with a Barnes 6.8 110 grain started at 2600 giving 10.5 inches of drop at 300 using a 200 yard zero and 843 ft/pounds at that range, the 300ACC with 13 inches of drop using a 125 grain NBT started at 2300 FPS gives 790 foot pounds at 300 and drops only 3 inches more. At the muzzle they are pretty different however.

Sure they will. For 125 grain bullets I settled on 18.0 grains of H 110 which gives you about 2200 fps at the muzzle. No pressure signs, cycles just fine. Given this upper has a 1-8 barrel twist I figured that 125's were going to group poorly but they did not, so perhaps I'll try 110's some cold winter day when there's nothing else to do.

hate to say it but the 7.62 x 40 looks better for a pure hunting round