Harrison
US Veteran
Anyone have any experience with the S&W in 300 Blackout? Good, bad, any problems?
300 Blackout ??
- Thread starter Harrison
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Smitty357
Member
Lets just say it'll make you forget about shooting your 5.56 anymore. My 5.56 hasnt been touched since i started shooting .300 AAC. And im honestly thinking about selling the 5.56 just because of the lack of interest.
Downside to .300 AAC. Ammo is fairly expensive and hard to come by. So when u find it for a good price, u better buy it in bulk if possible. If you reload you can cut down your 5.56 cases and use them to save on brass.
In a nut shell, the .300 AAC is exactly what the 5.56 should have been from the start.
Good: .300 AAC uses everything from the 5.56 (except the barrel). So you dont need to buy any special mags or anything for it.
The .300 Blackout is virtually identical with the .300 Whisper. The only difference is the Whisper used the .221 Remington Fireball case as the parent. Now that .221 case is in short supply (Natchez Shooters Supply lists it, but it's out of stock), people are cutting down .223/5.56mm cases and forming them.
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SmokewagonSD
Member
I built a 300AAC starting with a S&W stripped lower. I agree with the above post, it makes you want to forget about 5.56.
RobbW
Member
Blackout and Whisper are new calibers to me. Don't know anything about them. Are they effectively reduced-power .30 cal. rifles, with fire-formed .221 and .223 brass?
If .308 is like a .30-06 Special, is .300 blackout like a .30 Kurtz?
If .308 is like a .30-06 Special, is .300 blackout like a .30 Kurtz?
texasjim37
Member
300 Blk upper build
Where did you find your stripped upper? I am looking at doing the same for my MP 15...looks like and interesting project.
I am having trouble finding parts.
Any help would be greatly appreciated guys.
Thanks
Where did you find your stripped upper? I am looking at doing the same for my MP 15...looks like and interesting project.
I am having trouble finding parts.
Any help would be greatly appreciated guys.
Thanks
Where did you find your stripped upper? I am looking at doing the same for my MP 15...looks like and interesting project.
I am having trouble finding parts.
Any help would be greatly appreciated guys.
Thanks
You can get one here:
Smith & Wesson M&P15 Stripped Lower Receiver 812000
frdfandc
Member
I bought a .300 BLK M&P for hunting purposes. Main reason for purchasing this was the option of switching out uppers if I wanted to shoot on the cheap - either 5.56 or .22.
Also, the interchangability of parts - upper/mags/BCG, ect - minus the barrel - allows for only one platform to support. No need to stock pile a bunch of different mags for different calibers. Gives you pretty much the performance of the 7.62x39 round, but in a 5.56 casing.
Love shooting mine. Put around 100 rounds downrange the other day. Softer shooting than my .270 that I used to have. Even my Dad said the same thing.
Only downside is the ammo is expensive. Cost is way lower if reloading, which is what I intend to do to support this round.
OH, one last thing, if shooting subsonic rounds, makes shooting with a can very quiet. Which is a thumbs up in my book.
Also, the interchangability of parts - upper/mags/BCG, ect - minus the barrel - allows for only one platform to support. No need to stock pile a bunch of different mags for different calibers. Gives you pretty much the performance of the 7.62x39 round, but in a 5.56 casing.
Love shooting mine. Put around 100 rounds downrange the other day. Softer shooting than my .270 that I used to have. Even my Dad said the same thing.
Only downside is the ammo is expensive. Cost is way lower if reloading, which is what I intend to do to support this round.
OH, one last thing, if shooting subsonic rounds, makes shooting with a can very quiet. Which is a thumbs up in my book.
I am building a 300 aac Blackout right now off of a DS Arms upper and a Spikes tactical stripped lower. After having my shoulders rebuilt I am having problems shooting my 308's and am hoping that the blackout meets up to its hype.
Here is my new 300 aac blackout, DS Arms upper, Spikes lower, S&W M&P15 Sport Buttstock
Matech rear sight, Scorpion Handguard, G27 Pistol Grip, Blackhawk Sling
I use a Lee set of Full Length Dies to form and reload my brass, nothing special to it , in fact you can use whatever range .223 you pick up to make the brass
It's not my Sport but nothing else can be!!!!!
It's not my Sport but nothing else can be!!!!!
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texasjim37
Member
300 Blk upper build
Where did you get your stripped upper, barrel and other parts? I have a Smith & Wesson 5.56 already built and I want to build a 300 Blackout upper myself and need parts source.
Thanks,
Jim
Where did you get your stripped upper, barrel and other parts? I have a Smith & Wesson 5.56 already built and I want to build a 300 Blackout upper myself and need parts source.
Thanks,
Jim
SmokewagonSD
Member
I bought my lower in September at the local gun store, which in Wyoming means 60 miles away. Building it up from parts is fun and easy. I got my parts before the panic, CMMG barrel, Yankee Hill free float handguard. One piece of advice, buy the best trigger you can afford.
Harrison: I have heard good/bad/indifferent about the caliber. I received my SW 15 in 300 W-blk last week, just received ammo , 6:20 pm eastern time. I will have my results in a few days. A magazine " The book of the AR-15 " did a review of approx 10 guns and 6 uppers and also gave historical perspective, and which guns/uppers were working and why. Very helpful. Be Safe,
Harrison: So far 40 rds- Supersonic- works fine, accurate @ 50, Subsonic- rem 220 gr will not cycle it yet. accurate @ 50. I will be putting the can on, changing scope and moving to 100 YD. More later. Yes I will post targets.
Smitty357
Member
Subsonic doesnt cycle well without a CAN. And alot of times it doesnt cycle well with a mid length gas system no matter how u run it.
Pistol length gas system or an adjustable gas system is the best way to run .300 AAC both subsonic or supersonic with or without the CAN.
If u truly want the most of ur .300 AAC. U need to go a SBR configuration with a pistol length gas system. Shooting it suppressed it has better range than does ur standard 16" barrel. Its just the nature of the beast and the way it was designed.
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What Smitty357 said: accurate, quiet, cycles perfectly with 16" with a CAN. It would not cycle with 220 rem's, and eject only a few hornady 208 A-max. Only out to 100 yds today, BUT , quieter than a 22 lr, my wife had a sub MOA 3 shot group, I tried to stop her right at the trigger break and opened it to almost .5 for 4 shots, then the lightning started, did I mention it was pouring!! I had wanted it to work with out the can subsonic, BUT, I have no problem keeping the can on. Supersonic functions well with or with out. Be Safe,
