lube up any round you like, fire it. only..
do it only with a known ok, reduced, load... than compare the results.
Rounds with no case taper and other cases, to a large degree, depend on the case to chamber friction. Do the research or the math (friction tables and surface area) and find out for yourself if its a question in your mind... dont rely on what I or another might believe.
Interesting subject..
My current question is "does anybody know an easy why to remove the coating".
thanks,
later..
BG