quick back story
223 50gr speer sp, imr 3031,24gr loaded in 2004 with once fired 5.56 cases
the problem i bought an ar and in the interest of loading in volume i switched powders to h335 (meters 100% better) , while attempting to use up all my old loads a problem arose half way through a mag the gun jams,cleared jam racked a fresh round,round won't chamber i figured dirty chamber no problem,grabbed my h&r fired one shot shell popped out without a neck, neck section left in chambers.
now for update i was trying to pull the ones that are left. these bullets were not crimped yet i'm having lots of trouble getting them out some have even ripped the necks completely off from pulling, other problem bottom of bullets are covered with corrosion , btw i'm using a hammer type puller
oops sry forgot to add my question has anyone seen this before?i'm assuming they drew moisture,would that make the powder swell without destroying it,if so would it change burn characteristics?