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Armscor 10mm in Glock 20?

Discussion in 'General Glocking' started by rl356, Feb 16, 2013.

  1. rl356


    Aug 22, 2008
    Bought two boxes of Armscor USA 10mm ammo today (180gr FMJ). Was cheaper than other ammo I've bought in this caliber recently (approx $15 per box cheaper) and it was what was on the shelf. There's a sticker on the box that states "Not for use in unsupported chambers". Anyone used/had issues with this ammo in their glock 20/29?
  2. RMM


    Nov 17, 2012
    You should be fine running it in your G20. Usually the "unsupported chambers" specification is meant for 10mm barrels without a ramp, like the Colt Delta Elite 1911 style pistol. Your G20, especially if it's of newer production, has plenty of case support for any factory loading.

    The only 10mm ammo that I know of that was too hot to run in a stock G20 barrel was Swamp Fox's special "aftermarket barrel only" loads.

  3. rl356


    Aug 22, 2008
    Thanks for the information. Just read the same thing on the underwood web page for 10mm.