stealthman
New member
I have kind of a weird issue with my new (used) upper. Upper is Dtech in .204, lower is Plum Crazy, mag is 20 round PMag. When I charge the gun and with every new round that feeds into it, it puts a dent about 1/4 of the way down past the neck and makes light a v-shaped scratch on the actual bullet. The dents vary in severity, but they are horizontal on the brass and between 1/16 and 1/4 inch long. When I charge it slowly, it looks almost like the feedramp is doing this. I suspect the magazine is not letting go of the round soon enough, but haven't had the time to get back out and try it with a different mag. Anyone experience this or have any ideas?