Excellent, thanks. I understand that each batch varies, but would you expect even the tighter fits in the brass to be able to breech load from a clip? I understand if this is beyond your scope of experience at this point.
Also, apprehension was a technically correct term in context.
You are correct and I have reflected that in an edit.
If you mean like an LS breech, I would think so. My experience is limited but I do remember my AR-removed LS feeding 2.5" darts (from an older batch, not the newer, thicker one) feeding with an occasional jam in the winter. The thicker darts I imagine would feed much better, and you seem to be a better modder than I, so if you got a good batch I would think it would work.