Well, took my newly built 300 blackout SBR out for its maiden voyage today. Encountered an issue. Shooting 124gr supersonic factory loads, it will eject empty cartridge but will not pick up the next round. I placed a standard carbine buffer with no change. All casings eject at about the 4 o clock position.
Shot 5 208gr subsonic loads and they didn't eject at all for what it's worth.
Specs:
10.3 Daniel Defense barrel
Geisselle gas block
Pistol length gas system
Standard buffer
Mags - pmag and a fn factory mag
Shot 5 208gr subsonic loads and they didn't eject at all for what it's worth.
Specs:
10.3 Daniel Defense barrel
Geisselle gas block
Pistol length gas system
Standard buffer
Mags - pmag and a fn factory mag
