08-20-2013, 04:03 PM
I have a 16" 6.5 Grendel J&T Distrubuting which is the component side of of Double Star. My cartridges would get all scratched along with the brass. I think the scratches on the bullets was coming from the sharp edges of the barrel extension where the bolt lugs lock into place. Through firing the bullets are not getting near as scratched as when new. The scratches on the brass appeared to be from the sharp lips of the mags and the bolt/carrier moving over the top cartridge during the firing cycle.
If your having feeding problems I'd suspect defective or improperly formed mag feed lips. C Products and ASC mags seem to have more issues than typical 5.56 mags. I found I needed to clean my ASC mags as there is a gummy preservative from the factory. Since cleaning the ASC mags have functioned 100 %. If your using a suppressor, this can affect dwell time and cycle timing.
It's your decision as to whether to send your rifle back to DS. I have talked to them a couple of times and they had good customer service.
If your having feeding problems I'd suspect defective or improperly formed mag feed lips. C Products and ASC mags seem to have more issues than typical 5.56 mags. I found I needed to clean my ASC mags as there is a gummy preservative from the factory. Since cleaning the ASC mags have functioned 100 %. If your using a suppressor, this can affect dwell time and cycle timing.
It's your decision as to whether to send your rifle back to DS. I have talked to them a couple of times and they had good customer service.