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Educate Me On 300 Blackout

Discussion in 'Black Rifle Forum' started by xtremetj, Dec 22, 2012.

  1. xtremetj

    xtremetj

    158
    0
    Nov 27, 2010
    Texas
    I'm seeing a lot 300 Blackouts for sale. Thinking about picking one up just because i can but am not famiar with the round. Any benefits to it compared to the 5.56? Enlighten me please.
     
  2. DustyJacket

    DustyJacket Directiv 10-289

    6,507
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    Oct 16, 2008
    Missouri, East of KC
    Heavier (slower) bullet than the 5.56mm.

    Similar ballistics the the Russian 7.62 round in the AK platforms. (when supersonic)
    But, the only component you have to replace is the barrel. Not the bolt nor magazines.

    Also, functions as a subsonic round.
     


  3. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    Easily suppressed with 200+ grain subsonic loads, and can be quieter than an MP5SD. Can use reformed .223 brass, too. Until all the idiots started panic buying .223 in the past week, ammo for 300 was more expensive and harder to find in some places. Since so many of the components are the same, though, if the panic buying of .223 ammo continues, it'll start driving up the cost of 300, as well.
     
  4. number1gun

    number1gun

    216
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    Dec 3, 2012
    I see no benefit whatsoever. IMO horrible round. Crap Balistics.
    Expensive, not as much availability. Looks like it was designed for use with suppressor and sub sonic ammo. To me the real problem is that it is to specific in nature. Narrow use. The upper end Balistics are even worse. I think 6.8spc has more versatility.
    At least with 6.8 you can go from sub sonic to 3000ft/sec with an over the counter round. Upper end of 6.8 is darn close to .243 Balistics. I like the idea of one pretty versital calliber. I hunt more any way. I am also going to change from 6.8 to .223. For all the same reasons above. I happen to like 6.8 but .223 is everywhere. I do not need the hassle and expence of several different callibers. Coyotes will never know the difference. Good luck.
     
  5. MarkCO

    MarkCO Millennium Member CLM

    2,507
    66
    Dec 21, 1998
    Colorado
    xtremetj, please ignore post #4...

    The 5.56/.223 is of course the dominant round, but there are a slew of others. The 6.8 as compared to the .300BO has a little more velocity (about 150 fps for the same wieght slug) but to say it is close to the .243 (the 6.8 is about 300 fps behind the .243) is like saying the .30-30 is close to the .308. At least around here, there is NO 6.5 or 6.8 ammo at the LGS. whereas 3 or 4 flavors of .300BO are always in stock. There are also no available 6.8 sub-sonic rounds currently being produced. The 6.8 is not "bad" by any stretch, just not so great as implied in post #4. The 6.5Grendel and 6mm/.223 offer more advantages over the 6.8SPC.

    The appeal of the .300BO is multi-dimensional. First, as said before, it can be had, in factory ammo, in a sub-sonic round. With a suppressor, suppressed is well, supressed. Without a suppressor, think of the .300 BO as a 200 yard .45 ACP. The 225, 240 slugs, with higher BCs are much more accurate than a .45 and with more retained energy at any distance and significnatly better at barrier defeat. The recoil is less than the .45 ACP and the noice level is about the same.

    When you go to Supersonic, there is great variety. From 110 to 155 slugs (2450 to 2000 fps) at a variety of power levels. It is capable for deer sized game, varmints etc. out to 300 yards or more depending on the shooters skill.

    Is it the be-all, end all? No. However for certain tasks, it is better than other calibers in the AR-15 platform. The beauty is really in the conversion...just a barrel swap. The ..204Ruger, 6mm/.223 and .300BO are the only few that you use all the same parts (including mags) as the parent .223. The others require bolt changes, gas system changes, mag changes in varying degrees. Typically, the price of specialty bolts and mags is about 2x the .223/5.56 versions.

    Unless, you want to shoot sub-sonic and or use a larger caliber for deer sized and smaller game, there is not a good reason to drift from the mainline .223/5.56. If you do however, then there are a lot of options, the .300BO being one to consider.
     
  6. xtremetj

    xtremetj

    158
    0
    Nov 27, 2010
    Texas
    Thanks guys. I appreciate the information. I think I'll stick with the 5.56/223.
     
  7. I have a playlist of several videos discussing and demonstrating the 300 BLK. It is one of many calibers that I like. It does what it's advertised to do very well, but it is not the only interesting caliber out there.

    [ame="http://www.youtube.com/watch?v=KiJWyMu73RE&list=PLLL3Kmhuld1WhTki1ivyQZkQGtuzmV8Fs"]http://www.youtube.com/watch?v=KiJWyMu73RE&list=PLLL3Kmhuld1WhTki1ivyQZkQGtuzmV8Fs[/ame]
     
    Last edited: Dec 22, 2012
  8. onebigelf

    onebigelf

    348
    0
    Aug 28, 2004
    Florida
    I took a good, hard look at the 300 Whisper (same round) and then went with 6x45mm. I just wasn't interested in sub-sonic which is the real meow of the Whisper/Blackout/Fireball/ *300/221*

    John
     
  9. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    What suppressor is that? Looks like a YHM.
     
  10. ksmedman

    ksmedman

    441
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    Nov 24, 2011
    In the middle
    Ignore post #4, he doesn't have one or know anything about them, just posting crap he read on the internet I imagine. :upeyes: Perhaps I'm wrong...

    I have a 300BLK pistol that I'm waiting on my stamp to SBR.
    It's a 10" Noveske barrel, has great accuracy and can reach out as far as most people ever shoot.
    The caliber is nice in that it throws more weight than 5.56, and has a lot of versatility in subsonic and supersonic selection. I am getting ~2400 fps out of 125gr supers, plenty of power. Makes a nice, tight CQB HD gun IMHO.

    Uses standard 5.56 components, except barrel. Also uses standardized 308/7.62 bullets. AKs use a .311 bullet, so they are caliber specific. You can use the plethora of .308 bullets to reload with the 300BLK.

    It's not some magic guru do-all round, but it expands the AR platform, esp for those of us in <.23 caliber hunting states. If you're not a reloader, it limits the
     
  11. DustyJacket

    DustyJacket Directiv 10-289

    6,507
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    Oct 16, 2008
    Missouri, East of KC
    Gem-Tech Sandstorm titanium 7.62 NATO
     
  12. AK_Stick

    AK_Stick AAAMAD

    17,366
    1,053
    Jan 20, 2004
    Alaska, again (for now)
    300 blk out is only really advantageous if you use a surpressor. Unsurpressed and supersonic, it lags behind the 6.5 and 6.8.

    Pick the route you want to go, and the caliber choice is fairly obvious.
     
  13. number1gun

    number1gun

    216
    2
    Dec 3, 2012
    Wow. Actually I do have one in 6.8. 85gr Barnes TSX @ 3000ft/sec. Silver State amory. I bought 800rds. Last I checked, just raw numbers..pretty close to .243. Compare with Hornady .243 95gr sst @2960. Can buy 6.8 85gr TSX online almost any time. Yes not in many LGS. It did make a mistake with using the term over the counter. Almost know one has either one in any quantity. Unless you happen to have a LGS that Makes an effort to keep several in stock. again good luck.
     
  14. DustyJacket

    DustyJacket Directiv 10-289

    6,507
    178
    Oct 16, 2008
    Missouri, East of KC
    Supersonic - the 300 BLK is about the same as an AK round - which was the intention: An AK round (7.62 x 39) in an AR platform where you only have to swap the barrel and no other parts.


    There are certainly more potent rounds out there.
     
  15. Orkinmna903

    Orkinmna903

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    Dec 27, 2004
    Lufkin TX
    View attachment 229898

    This is why! 300 +lbs. through an through with a 150 gr ballistic tip. At least 20 inches or so of pure pig penetration. 20 or 30 rds depending on how you like your mag. I have shot them w/ .223 for years and the 300 outperforms it by leaps and bounds. For people protection probably not much difference, but for recovering game it is better.
     
  16. The only reason I got into the AR platform was the 300 AAC Blackout. I've been very pleased with it both at the range and hunting. If all youre into is shooting paper and (deleted) the 556 NATO should be all you need. If you want to start using the AR platform to hunt , the 300 AAC Blackout is a caliber to consider at the distances that 99% of us couch comm andos can hit. No special bolts, mags, or parts needed. The 6.8mm Special Purpose Cartridge fanboys seem to be particularly sour to the 300 AAC Blackout, and I don't know why.
     
    Last edited: Dec 25, 2012
  17. MarkCO

    MarkCO Millennium Member CLM

    2,507
    66
    Dec 21, 1998
    Colorado
    Simple. There are only so many people who want a cartridge other than the .223/5.56 in an AR15 platform. The popularity of the 300BO has taken suiters away from their favorite which makes it more difficult for them to use/promote the cartridge they like.

    To some degree, same reason folks argue about .270/.308/.30-06. Why 7mmMag fans and .300WM fans argue about which is better.
     
  18. Big Bird

    Big Bird NRA Life Member

    9,520
    1,009
    Aug 7, 2003
    Louisville KY
    Naw...I ciuld care less if you want a .300BO. I went with the 6.8 for the very simple reason that I wanted superior deer killing ballistics over the 5.56.

    A 6.8 will have 40% more energy than a 5.56 at all ranges and 70% of of the energy of a .308 at all ranges. Its a real 300 yard deer bullet in an AR. You cannot make those claims with the .300BO at any range in any loading.

    JD Jones built a cartridge almost identical to the .300 BO back in the 1980s for use in Single Shot Pistols in metallic silhouette competition. It was called the .30 TCU. It was nothing more than a fire formed .223 case. It was underwhelming back then too... and never gained much popularity.

    The reason the 6.8 wins is pure and simple. Case capacity. The 6.8 SPC will hold 50% more powder than a .300BO and there's nothing you can do to change that geometry.

    The. .300 BO has one thing going in its favor and that's as a suppressed round using subsonic ammo. Basically its a little better than a pistol cartridge when used in that role. So if you want to shoot a 10-12" SBR Suppressed then its probably a top choice. But very few people actually do that.

    Again, you want a .300 BO then by all means--scratch that itch. But if you REALLY want top shelf performance in a AR15 platform the only real non-wildcat option is the 6.8 SPC with a close second coming in with the 6.5 Grendal.

    The .300 BO is very close to the energy you get with the 5.56 with the supersonic loads. Nobody with any sense is going to argue the .300 BO is any better than a 7.62X39 and nobody that hunts with a 7.62x39 will make the case that its a 300 yard deer gun. It isn't. But a 6.8 SPC has the velocity and energy to pull off a .300 yard humane kill on deer size game.
     
  19. Orkinmna903

    Orkinmna903

    160
    35
    Dec 27, 2004
    Lufkin TX
    View attachment 229909 This picture begs to differ. 257 yds with a rangefinder. See the little box above the bumper? That's where I took the shot w/ my 16" blackout. If you're competent it can be done.


    Posted using Outdoor Hub Campfire