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sustained rate of fire 15 RPM?

Discussion in 'Black Rifle Forum' started by RUSH2112, Mar 1, 2010.

  1. RUSH2112

    RUSH2112 Big Member

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    I just read 12-15 rounds/minute is the max that the AR should be fired indefinately. Anything over 15 rounds/minute for a sustained period (VERY long I assume) could heat the barrel to a cook off point?

    Really?! :wow:

    That kinda sucks doesn't it?
     
    Last edited: Mar 1, 2010
  2. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

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    Try firing any gun rapidly for long periods of time.
     

  3. djegators

    djegators

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    What is indefinitely? What is the length of the sustained period? 15rds a minute, is a round every four seconds...say that period is 30 minutes...well thats 450 rounds...lots of mag changes! I am guessing this more than just a mag dump they are talking about...
     
  4. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

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    IIRC someone tested an M4 on full auto, pausing only to switch mags as quickly as possible. Did 400 something rounds before total failure. I've seen AKs being treated the same way, with the same results. I've seen M249 barrels ruined in short order by not having any trigger discipline, and it's actually meant to be used in the LMG role.
     
  5. kabob983

    kabob983 "Mostly" Dead

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    Yeah, they're not meant to be continuously fired at high rate for a long period of time.

    If the barrel it too hot to grab on and hold, stop shooting!! (kidding)...
     
  6. djegators

    djegators

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    Probably could get a rail mounted hot dog cooker for those long summer afternoons at the range...
     
  7. RMTactical

    RMTactical Battle Born CLM

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    It's not a machine gun, what do you expect?

    There are some cool videos here of the M4 and M4A1 being pushed to their limits.

    http://atwar.blogs.nytimes.com/2010/01/12/m4-and-m4a1-guns/

    Realistically though, would you need to treat your weapon like that? Even in the military, something like shown in the videos would be extreme.
     
  8. furioso2112

    furioso2112

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    Other interesting applications would be mid-length, SS barrels, dissipators, SBRs, pistol ARs.

    So where can I get a barrel and gas tube made out of diamonds? Maybe an oil-cooled barrel, or radiator attachments - finally, we have an application to make use of the 203 cutouts - now someone just has to invent a radiator that fits into the notches.
     
  9. kabob983

    kabob983 "Mostly" Dead

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    You build it, I'll buy it!
     
  10. RUSH2112

    RUSH2112 Big Member

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    Apparently "sustained" fire is quite a bit longer than what I first assumed. It was the "15 rounds/minute that jumped out at me. At the range I don't think I've ever fired as low as 15 rounds/minute through ANY firearm.

    I have places to go, things to do, people to see, lol.
     
  11. GreyEclipse

    GreyEclipse TheGreyEclipse

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    Who has enough ammo AND loaded mags to accomplish that anyways?
    And wth hasn't died after 500 continuous rounds in the belly?
    Even if you were in a war zone you wouldn't have time to fire that many shots. Especially aimed shots. Not to mention that you'd probably die if you tried.
     
  12. Spiffums

    Spiffums I.C.P.

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    What is the most common load out for a solider. 9 mags at the most 1 in the gun 8 in a chest rig? If that's it it would only add up to 270 till your tapped out.
     
  13. GreyEclipse

    GreyEclipse TheGreyEclipse

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    Exactly. This is one of the reasons that auto fire is overrated.
     
  14. AK_Stick

    AK_Stick AAAMAD

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    Automatic is over rated, till you need it, then nothing short of it, will suffice.
     
  15. GreyEclipse

    GreyEclipse TheGreyEclipse

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    Firing in full auto is inaccurate is crap. Not to mention wasteful.
    The only weapons that benefit from full auto are submachine guns and support weapons. Rifles rarely benefit from it unless in CQ.

    There's very few reasons anyone would ever need it.
    Therefore it is overrated.

    I'm not disagreeing, just pointing out that it's use is very limited.
     
  16. glock22357

    glock22357 Got Ammo???

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    My $.02 is to support the idea that it's completely over-rated...until you need in an up-close and personal situation. With our troops having done alot of house-to-house fighting in recent years, I'm surprised that more troops aren't issued select/full auto M4s.

    It seems to me that full-auto can go along way in helping out the poor troop that stumbles upon 4 bad guys after kicking in a door.
     
  17. GreyEclipse

    GreyEclipse TheGreyEclipse

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    I agree. Like I said, close quaters combat is the only time it's really useful.
    Close quaters and suppressive support fire.
    Other than that it has no real good tactical purpose.
    But in the scenario that you've given.

    Troops going house-to-house, given fully auto weapons would be pretty dangerous to engage enemies with because of the civilians in a given area.
    Now if there were no civies in that area then break out the auto.
    But there's really no way to tell if there's going to be civilians in a given area.

    I respect everyone's opinion. Just don't COMPLETELY agree.
     
  18. AK_Stick

    AK_Stick AAAMAD

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    full auto wouldn't really be any more dangerous than anything else to civilians in the area.

    You can shoot short controlled bursts with auto, just takes some practice.


    FA is also very nice when you're being attacked by a numerically superior force. The ability to put down a literal wall of lead is sometimes a very nice thing.
     
  19. RMTactical

    RMTactical Battle Born CLM

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    SEALs often use full auto against superior numbers in order to create the illusion that they are a larger force than they are.

    Also, if you believe that the side that throws the most lead wins, full auto ain't bad to have.

    It'd be nice to have. In the military, there are times where it is very useful.

    As a single rifleman in a civilian setting, there aren't many times it would be needed. That doesn't mean I believe it should be regulated the way it currently is... but there's nothing I can do more to change that at this moment unfortunately.
     
    Last edited: Mar 2, 2010
  20. HAIL CAESAR

    HAIL CAESAR Senior Member

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