I just bought a new 686 silver pigeon and plan to use it only for skeet. It weighs in at 7 lbs. 6 oz. I would like to add some weight to cut down on the recoil and it is a little whippy the way it is. I already added 8 oz. in the stock(after I found the center of gravity without any weight) and secured by packing foam rubber behind it. I'm going to buy a Briley 8 oz. clamp on barrel weight. Assuming I position the weight so that the center of gravity stays the same, will this be the same as a gun that is heavy right off the shelf?