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Old December 19, 2012, 03:21 AM   #14
radom
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Join Date: January 21, 2000
Posts: 1,296
To the original question a lot the ammo used in Koreia was from WW-2 and loaded for tropical use. It had a additive in the powder to keep the rounds from being affectived by humidity and heat that in time degraded the powder.

After the war lab tests showed this ammo would average around 650 FPS out of a carbine at below 0 temps.
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