Good video.  I'm glad he kept stressing that shooters need to pattern their own guns and loads.  Any shotgun and any load in that shotgun is a law unto itself.  I would have liked to see a multiple shot string with each load and an average of the group size with both kinds of ammo at the various distances to reduce the shot to shot variable but this is not bad.  It confirms my own seat of the pants estimate with my own guns about how these types of ammunition will perform.   My coach gun has given results similar to those shown with the same ammo out of different barrels.  In other words, center of mass with the whole load out to about twenty yards with one barrel and out to about twenty five with the other using the same Remington load from the video.  I can count on fifteen and twenty yards respectively using non-buffered loads.   

That suits me fine as that gun, loaded as it is,  performs camp site defense duty in bear country and "What the hell was that?" duty in the house when we come home from camping.  Nothing either place you need to shoot at beyond about twenty yards. 

I'd like to see the same type of test run with the Mossberg Shockwave configuration.   

I was not surprised with the performance of both loads from a 20 inch cylinder bore.

Indeed, I was not surprised that such performance could be had from the reliable  Mossberg/Maverick 88 - one of the most inexpensive repeating shotguns currently on the market.

And, yes I agree with coelacanth on the need to pattern several rounds to establish an average minimum pattern baseline with the chosen buckshot load.