My two CVA guns will make decent 100 yard three shot groupsat 100 yards without cleaning between shots when using 777 orPyrodex. When using 777, my .50 Encore must be very carefullyscrubbed usingWindex with vinegarbetween shots: Otherwise the first bullet will be in the center of the 100 yard bull and the second one somewhere on the target six to eight inches from the first.

BTW: i usually swab between shots.