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Interest in 300 AAC Blackout?

Discussion in 'Rifle Discussion' started by thurston24, Feb 22, 2012.

  1. thurston24

    thurston24 Richland, WA Member

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    Hi everyone, I am trying to gauge interest in 300 AAC Blackout Uppers. We are starting a venture to produce the highest quality uppers and I am trying to see if the caliber is what you are looking for. If so, what barrel length would you be most interested in, and what gas length would you want? All barrels would be stainless. Also, since they would be uppers and fit your standard AR, would you want a bolt carrier group and a charging handle? I don't have any specs yet, but as I iron out the details, I will try to appraise you of the details. Thanks for the info.
     
  2. Yooper Time

    Yooper Time Bend, OR Member

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    After being in the gun business for a year, I think there is interest in this product. A lot of the discussions I have had with people about this caliber involve people asking where to obtain complete uppers (charging handle, bcg). 16-18" with carbine gas/mid length gas. Keep me posted by PM when you come up with something...I may purchase a "test" upper! Good luck!
     
  3. tribb333

    tribb333 Salem, OR Member

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    I have one I built that I'm trying to sell and nobody really seems interested thus far. A couple questions, but no serious offers. Mine is complete with BCG/CH. I built it with an optic in mind, but a couple people seem to be interested in having iron sights, so just a heads up on that.
     
  4. doubletap007

    doubletap007 Beaverton Active Member

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    i have been interested in a high quality 300 blackout upper for awhile now.infact i had a post on it a few weeks back.

    i dont want to have to get a stamp so i would want a 16"barrel but most people wanted the short barreled 300aac's(9-11")
    i also like the piston guns due to the clean chambers so i can put lots of rounds through it without cleaning it so d.i.is not really
    what i want but i may change my mind about that?

    i would not run a supressor but most say why have the 300blk if your not going to run it subsonic?i again dont want the stamp hassle.

    my main reason for this round is the larger 7.62 round out of the same 5.56 magazines and lower.
    because i want the 300blkout upper on my pof p415 piston gun,i think it is to my advantage to build my own from a pof or aac piston upper and just change the barrel to 300blk so i can have my piston option though.
     
  5. cclfn

    cclfn Oregon 97401 Member

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  6. iamme

    iamme Lane County Well-Known Member

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    Over 16" is pointless for a round that shines subsonic, AAC DOES NOT RECCOMEND midlength gas system last I saw due to unreliable cycling- requesting midlength on this build is kinda backwards.
    So no one thinks I'm crazy a quote from Rsilvers:

    Also AAC is pushing barrel makers to 1/7 to stabilizie the round. I'm definitely interested in this round but it's one people still need to do some reading on instead of just seeing 300AAC and getting all excited with their lipstick out.
     
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  7. Burt Gummer

    Burt Gummer Portland Completely Out of Ammo

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    Even though the shorter barrels/OAL definitely add to the cool factor, I'd go with 16". Not to avoid going SBR, but because with 16" it is apparently hearing safe with supersonic ammo/suppressor, while the short 8"-10" barrels are not (louder). I like the looks of a quad/other rail running up to the end of the barrel though, looks better with a suppressor than 5"+ of bare barrel with a suppressor on the end.
     
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  8. skydiver

    skydiver Sandy,OR Well-Known Member

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    Translator and (deleted member) like this.
  9. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    Depends on who you ask about 1:7 vs 1:8 twist. With 1:7 the bullet is VERY stable so some (JD Jones) suggest a 1:8 that is stable but will tumble when hit.

    I agree 16" with rifle length handguards;

    DSC_0004-2.jpg
    Lilja 16", 1:8, carbine length gas block.
     
  10. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    Sorry I meant carbine position gas block. Many suggest pistol length. There is TONS of info on this if you look up .300 Whisper (been around many years).

    1:7 vs 1:8 has nothing to do with being suppressed. It has to due with if you want to leave a nice little .30 cal hold though something or if you want to leave a giant temporary and permanent wound channel.
     
  11. iamme

    iamme Lane County Well-Known Member

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    Please share where you got this info, this is counter-intuitive to everything else suppressor/sound related.
     
  12. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    Bullet length is what determines the proper twist rate.

    If that was not the case how would a 62gr .223 bullet need a 1:7 yet a 150gr .30 cal bullet only needs a 1:10.........

    http://en.wikipedia.org/wiki/Rifling
     
  13. unklekippy

    unklekippy In The Mountains Near Sprague River Well-Known Member

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    300 Blackout/Whisper? Definite thumbs up. Direct impingement will foul the system up in no time. A piston-driven upper is a must. An AR with 5.56, 300BO/Whisper, 6.5 Grendel and .50 Beowulf uppers sounds like a good weapons system to me. The piston is the key in all of it. It makes the AR a viable option. I will never retire my AK's, but once the piston uppers are more common, I will hop back on the AR boat. Kip
     
  14. Burt Gummer

    Burt Gummer Portland Completely Out of Ammo

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    What part? The part about the 8"-10" being too loud to be sound safe with supersonic loads, therefore going with a 16" barrel so both loads w/o ear protection? I believe the AAC guy at Shotshow 2012 gave a little speech about that. I've heard it mentioned in a couple other videos also.

    Are you saying you believe that is not correct? I would eventually go with a 9" SBR if that was not the case. Quieter with a 16" barrel though would be better for me.
     
  15. iamme

    iamme Lane County Well-Known Member

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    I'll revert again to the horses mouth:


    I can't find the post I found earlier but I thought was silvers stating unsuppressed db around 150. This post states the 30cal can gave a reduction of 39db, then states with a good 30cal can should meter upper 120's, that'd put unsuppressed ~160. I wouldn't call that hearing safe without a can. The little research I've done is 300 gives good performace supersonic, not as much subsonic but quiet.:
    M4Carbine.net Forums - View Single Post - 300 AAC Blackout Sound Suppression
     
  16. Burt Gummer

    Burt Gummer Portland Completely Out of Ammo

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    No, I might not have been clear. The reason for a 16" is so that it is hearing safe SUPPRESSED with SUPERSONIC rounds. Not unsuppressed. Apparently, the experts say a 9" is not hearing safe suppressed with supersonic rounds. I would want a rifle that when I switch out magazines from supersonic to sub ammo, neither would require hearing protection.
     
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  17. iamme

    iamme Lane County Well-Known Member

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    If 16 is 9 should be. Longer barrel= more velocity ,sonic crack
     
  18. Burt Gummer

    Burt Gummer Portland Completely Out of Ammo

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    Both will have sonic crack; the longer 16" barrel (sound at the rifle, not downrange) is not as harsh as a 9", both suppressed. I am not an expert on this subject by any means and don't claim to be. This is just what I've gathered by recent research.
     
  19. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    Well Rslivers is just ONE house and just the newest. Again JD Jones is one of the original developers of this style of round (I believe he is the original) and he choose 1:8 for a very specific reason.

    WHY does Rslivers say that 1:7 is better?
     
  20. rsilvers

    rsilvers NE New Member

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    I think a lot of SSK guns were 1:10, but I am not sure.

    1:7 is for more stability with subsonic bullets.