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Why 20rnd magazines?

Discussion in 'Rifle Discussion' started by Kimber Custom, Sep 22, 2010.

  1. Kimber Custom

    Kimber Custom Vancouver, WA Bronze Vendor Bronze Vendor

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    I can understand 5rnd to meet hunting regs. I can understand 10rnd for Peoples Rebulic of CA; but why 20rnd?

    There's only a few dollars difference between 20 and 30rnd. Why wouldn't you want maximum capacity? Am I missing something?
     
  2. Bad Droid

    Bad Droid Hillsbarrio Member

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    Are you talking for the AR Platform? I like the 20's because of weight and for the prone position (No bipod). But I tend to not have as many mag issues when using the 30 rounders though.
     
  3. spengo

    spengo GLORIOUS CASCADIA Active Member

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    You can also get 40 round AR-15 magazines, and even 100 round AR-15 magazines.

    Why wouldn't we want maximum capacity? It is a MYSTERY! D:
    ccm000-4.jpg


    Or ****... who needs magazines? INFINITE AMMO is the way to go!
    Shrike556-CQB-LMG-003.JPG

    ...if you can ever get ahold of a shrike. lol vaporware. :fart2:
     
  4. trainsktg

    trainsktg Portland OR Well-Known Member

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    Its a comprimise thing, mostly. 20 rounders are good for any rifle when shooting prone, and for rifles that take a larger cartridge like an HK91. I personally wouldn't use anything under 30 rounds in an AK though, and run a 75 round drum in my Russian RPK clone (yee haw!)

    Keith
     
  5. Cougfan2

    Cougfan2 Hillsboro, OR Well-Known Member

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    I have 20 rounders for shooting prone and for sighting in off of a bench.
     
  6. Woodswalker

    Woodswalker THe great PNW Member

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    20s are a good compromise between capacity and weight/size...especially in .30 cal cartridges.

    In .22 cal things I can go with 30s and still get close to the ground in a prone (but 20s get you closer).
     
  7. MountainBear

    MountainBear Sweet Home, OR Well-Known Member

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    When shooting prone with a 30 round AR magazine, often it can either hit or rest on the ground. This can put upward pressure on the underside of the bolt carrier and cause issues.

    All the mags but one for my AR are 20 rounders. Honestly, I will probably never be in combat. And since that's the case, if I can't get something done with 20 rounds, I probably couldn't get it done with a thirty...
     
  8. deadeye

    deadeye Albany,OR. Moderator Staff Member

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    +1
     
  9. QXSOUP

    QXSOUP Portland, OR Member

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    Why 20 rounders?? Simple, the M-14 had 20 rounders...
     
  10. Kimber Custom

    Kimber Custom Vancouver, WA Bronze Vendor Bronze Vendor

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    Thanks for the info.

    Yes, the AR 5.56 platform was the foundation of my question.

    I can understand not going to a 100rnd drum simply due to cost. There just doesn't seem to be much of a cost difference between 20 and 30.

    Prone shooting; makes sense :thumbup:

    Ironically the reason the question came up was I got a good deal on 5 20rnd mags yesterday ($7.50 each). I was questioning my purchase after the fact and wondering why I hadn't gotten 30rnd'ers.
     
  11. spengo

    spengo GLORIOUS CASCADIA Active Member

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    20rd mags look sexier anyway. More streamlined.
     
  12. Sun195

    Sun195 Pugetropolis, WA Well-Known Member

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    I don't know - lots of ammo comes 20-rounds/box, so one box = one magazine might keep things simple in some way.
     
  13. trainsktg

    trainsktg Portland OR Well-Known Member

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    Too bad hot dogs and buns aren't packaged with the same thought in mind :eek:.

    Keith
     
  14. Arkarayne

    Arkarayne Medford, OR Member

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    Honestly once I get my own rifle platform (most likely AK, sorry AR) i'll be using 20's:

    -Smaller and lighter. can carry more if needed.
    -Agreed, if you can do what you need to in 20 before a reload, you can't do it in 30.
    -20, easier to count to if you're trying to keep track.
    -98% of rifle rounds come 20/box, easier to reload a mag on the fly, and not have 10 loose rounds bouncing around your pocket.
    -Psychological: most anyone who shoots considers 30 rounds the standard rifle mag, so if they (whoever 'they' may be, whenever that 'they' may come along) only count 20 shots, they don't know if you got another 10 coming, or you're reloading.
     
  15. marty8587

    marty8587 NE Portland Active Member

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    I've bought several of the smaller mags, 5,10 and 20, for my AK. The reason or one of them anyway is when I am out shooting and I hand someone my gun to try with a 30 or 40 in it I get it back empty without an offer to pay for the ammo. I am more charitable 5 rounds at a time!
     
  16. Key-Hay

    Key-Hay North Carolina Active Member

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    30 rounders make it look like compensating for something.
     
  17. RallySoob

    RallySoob Salem, OR Active Member

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    20's are good for shooting while laying down or at the bench. You will need a very long bipod to get enough clearance for a 30rnd mag and the gun becomes unstable with your pod legs pulled out that far. So I bought the 20's for shooting long distances.