The answer is actually pretty simple,....and this DOES work.
Expose a grease groove, this is going to mean more powder, less compression, or thicker wads.
Upon the first initial firing impetus the base of the bullet is "Slugging up", ....another way to put this is that the base has gone into motion, but the nose is still stationary. The annular ring of lube will fill your "Gap" and the bullet once in motion will be sliding over it.
Lead ringing should cease to be a problem.
Don't knock this 'til you've tried it.
Luck
GTC
