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AR-15 in 10mm Auto

Discussion in 'General Firearms Forum' started by PimpStick, Jul 10, 2012.

  1. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

    38,528
    3,924
    Jun 25, 2004
    Amarillo, Tx

  2. WoodenPlank

    WoodenPlank Who?

    7,958
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    May 15, 2010
    NW Florida
    And it's an Oly to boot... :faint:
     
  3. Tim151515

    Tim151515 iHeartGuns

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    Feb 6, 2011
    Dayton, OH
    ummm why not just get 556? its more powerful and cheaper...not to mention more readily available mags and such..
     
  4. countrygun

    countrygun

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    Mar 9, 2012

    I looked at one myself. It;s been around a while. I couldn't find any good reviews on the Oly so I gave it up.

    Tim, do you always measure "power" by some numbers, in someones book of formulas?

    Have you ever looked at the specs for a 10mm coming out of a 16" barrel?

    There is some simple, figure it out in your head using common sense, kinda math that makes a person question your definition of "power"

    The 10mm with a 200 gn bullet has somewhere between 2,5 to well over 3x the weight depending on the bullet weight, the 10mm has a bit less that 2x the diameter, the only thing the .223 has is around one third more velocity depending on bullet weight, the heavier the bullet the lower the velocity gap,

    Again, if some other formula trips your trigger and makes you feel fuzzy, great. But if I had to drop a POed bear with one shot, or take a bet on which bullet wouid stop a deer at 100yds with a raking shot,I'm going with the 10mm.
     
  5. Metal Angel

    Metal Angel

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    Oct 20, 2010
    I can understand an AR15 in 9mm because 9mm is cheap to shoot. .40smith costs almost as much as 5.56, so that wouldn't be worth it... 10mm? Holy crap. It's like paying for a .308 and not getting it.
     
  6. MarcDW

    MarcDW MDW Guns Millennium Member

    3,713
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    Oct 20, 1999
    Maine USA
    If you cary a 10mm pistol I can understand that you want to stay with one caliber.
    Otherwise why would you want an expensive 2nd caliber like this?
    Also, if I would get something like this, I would register it as SBR and get it down to somewhere between 9-12".
     
  7. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

    38,528
    3,924
    Jun 25, 2004
    Amarillo, Tx
    Someone needs to brush up on their ballistics...
     
  8. Tim151515

    Tim151515 iHeartGuns

    1,889
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    Feb 6, 2011
    Dayton, OH
    sorry...i guess the only formula I was using was the messes I had to clean up after in afghan, combined with the fact that 10mm is just a handgun round.
     
    Last edited: Jul 10, 2012
  9. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    Also, am I the only one that sees bad things coming from a straight blowback gun in 10mm?
     
  10. MrMurphy

    MrMurphy ********* Moderator Moderator Millennium Member Lifetime Member

    12,972
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    Jan 16, 2001
    Buried in the X-files
    "Blowback 10mm" and "Olympic" are three things that should never occur in the same sentence.

    I'd rather have a .308 or 5.56mm AR. Failing that, a .450.
     
  11. glock2740

    glock2740 Gun lover.

    18,888
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    Jun 19, 2008
    NW Ark.
    The Tommy gun was based on just a handgun round, and in .45ACP at that, which is alot less powerful than the 10mm. I think a 10mm AR would make more sense than an AR in one of the .458 SOCOM or .50 Beowulf loads IMO. :dunno:
     
  12. Decguns

    Decguns

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    Dec 29, 2003
    NC
    There's a reason why armies don't issue Tommy Guns, or any pistol caliber submachineguns now days, the assault rifle is superior. The 10MM in a carbine is rediculous expensive to feed. Might as well be shooting $5 bills.

    You can't find any good reviews on Oly rifles because they suck. I got so tired of sending them back for repairs, that I just quit stocking them in the shop 15 years ago.
     
  13. uptomyneck

    uptomyneck

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    Apr 7, 2012
    Typical GT. Nobody owns one, yet they **** all over it.

    I own one that I pig hunt with. It's on my M16A2 lower. With Doubletap 200 gn, it stones pigs from over 100 yards. The upper operates fine with no issues and is accurate.

    I'm getting the barrel cut to 10" so I can use a can. So then I'll have a full auto 10mm suppressed. Yea, that must suck.
     
  14. ronin.45

    ronin.45

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    NE OHIO
    Agreed

    And no oly!
     
    Last edited: Jul 11, 2012
  15. MarcDW

    MarcDW MDW Guns Millennium Member

    3,713
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    Oct 20, 1999
    Maine USA
    I am not sure if this is a federal restriction, but at least in Maine hunting with a machine gun is a big no no.
    Beside, you can only hunt with a 5 round magazine.
    Just saying ....
     
  16. fnfalman

    fnfalman Chicks Dig It

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    California & New Mexico, US
    The 5.56mm round averages around 1200-ftlb(f) of kinetic energy at the muzzle.

    What's the 10mm with its velocity out of 16" barrel? If you have the velocity, it's simple to figure out: KE = 1/2(mass x velocity ^2). Gotta convert bullet weight from grain to poundage (5200-gr/lb ?).

    Or get the velocity of the 10mm out of a 16" barrel and go a website where all you have to do is plug in the velocity and weight, and the kinetic energy calculation magically appears.

    I don't know what the velocity of the 10mm is out of a 16" barrel, but whatever it is it has a long way to go in order to make 1200-ftlb(f) of kinetic energy at the muzzle.
     
  17. fnfalman

    fnfalman Chicks Dig It

    50,920
    3,455
    Oct 23, 2000
    California & New Mexico, US
    I may not have owned a 10mm upper, but I've owned an Olympic Arms XM-15 before. Never again.
     
  18. Bren

    Bren NRA Life Member

    42,052
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    Kentucky
    If you're a cowboy and have to carry all of your ammo in a saddlebag, including bullet casting and reloading equipment.

    If you don't carry portable reloading equipment, the 1-caliber thing doesn't make any sense at all. A handgun is carried for portability, at the expense of power/range. It's silly to then sacrifice the power and range in your long gun, jsut so you can reload them from the same box.
     
  19. Tony Rumore

    Tony Rumore

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    OK, USA
    I had a 10mm Oly about 10 years ago. It ran flawless.

    Tony