Sorry...it's been awhile since I've had time to post a follow up on this topic.
16.0gn IMR4227
147gn Hornady FMJ w/ cann
2.10" COL
~1750 fps
Nets a full case and ~95% burn rate according to QuickLoad.
Cycled both pistol and carbine gas port systems w/o feeling excessively harsh and fed reliably...as long as reasonable time was taken between shots (not good for double taps).
Accuracy was decent and this has become my de'facto load for forming first fires of 300WTF brass.
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