ddm4v7slw 14.5 middie
rifle length RE
tbac ultra9
slr agb
yes, it's a sbr lower, a dd mk18 factory lower
it's 32 right now and i wanted to tune the gas block to cooler weather
223 american eagle 55gr
i bought a chrome bcg and while i was shooting i noticed that the ejection was a little weak. i put the OEM dd back in and noticed the ejection was about 2 feet further, but nearly the same angle. i started to poke around and noticed the cam on the chrome bolt has a lot of slop compared to the dd bolt. both bolts seem to fit nice and tight in each carrier. when i swapped bolts and carries, the brass landed in the same spots as when in their original configuration.
they both eject at 430ish, the dd just throws them further.
could the loose cam pin fitment cause this? is loose cam pin to bolt fitment detrimental?
edit to ad:
does the cam pin being loose allow the bolt to unlock earlier allowing weaker gas drive?
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