this is probably an apples to oranges comparison, but CETMEs and HK rifles have fluted chambers that gives them all kinds of problems (stuck cases, case head separation) when using commercial ammo because factory .308 brass simply isn't strong enough to withstand the extraction. (military 7.62, while retaining identical outer dimensions, has thicker brass)

I would have to think that doing anything to cause your cases to stick more would invite nothing but problems.
YMMV.