i had a double feed and jammed mag on a vulcan3hp .30cal. to fix it, i degassed the gun, took it partly apart so i can get the mag out. the self cast slugs sat very tight, so i had planned to just shot them out. when filling the air-reservoir up again, i forgot to cock the gun, so the pressure went straight to the barrel and build up behind the slugs until they shot out and punched holes in some shelved plastic containers with electronic components in my workshop. it was not high power, but enough to do quite some damage. lesson learned and another proven, never point the gun at something you do not want to accidentally shoot.
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