huh???
Well,,,, I aint sure what a BG is,,, perp????? but the homicides that I have worked where shotguns were used were always fatal and messy.... up close [ 10 ft. or less] 6 shot acts like a slug,,, tearing a 1'' hole all the way thru...usually with no exit ,,, and at further distances out to say 100 ft. there is so many holes in the person that it is impossible to render any medical aid ,,, the flesh is turned into hamburger... a no.6 shot shell has 360 pellets in it plus the plastic shot cup,,, which takes 40 ft. or so to separate, unless it hits something in route... in the case of a sheetrock wall,,, the first sheet, and any 2x4s in the wall and the 2nd sheet on the off side will usually stop....
i did ballistic tests on all the ammo that the men carried, all calibers, bullet styles, loads ect... there were 2 or 3 that really worked,,, the shotgun loads,,, the hollow based wc rounds,,, even in .38 spl. in a snub nose,,, and the rounds bigger than .40 cal....
In duct seal, the .38 hb loaded backward mushroomed every time to 5/8'' or bigger....in the 357's the speer 158 grain hp that all the guys favored, always just sheared the nose off and the rest over penetrated....
but the shotguns were far and away the best....
Steve,,, I am not that up on the particular gun that you mention,,, I am more old school,,, no doubt it will get the job done,,, police weapons get more abuse from hauling around,, scrubbing up in fights,,, getting in and out of a/c cars and coming in out of the cold into heated buildings and cars... ect.. than any thing else... you need a weapon that will take that and hold up,,,, stainless steel is the way to go,, and the polymer stocks work good....
In this day and age, one needs to consider that someone with small hands and not real strong may need to use a weapon to defend against a drugged up scumbag that intends to not have any witnesses to be in court... and pick something that is simple to use and very effective... shotgun......
And,,, nothing beats training,,,,when the chips are down a human will do what they are trained to do whether right or wrong.... The mind takes over and the person will do what is drilled into them when the stress is out of sight...when there is a intruder into your personal space the stress factor kicks in.... fire arms familiarity , preplaning, ect. can make all the difference in the outcome....I trained my wife to get the kids and her into a corner in the house with a doublebarrel shot gun and stay there untill I showed up , even if she had shot someone......
We had a officer in another dept.. that got into a shoot out and when his pistol was empty,, started picking up the empty brass...IN A GUNFIGHT ,,,, that was what he had been trained to do at the range...dang near got him killed....never again did we fire at the range and then have our guys to pick up the brass... we waited untill the session was over... then picked up the brass.... WHEN YOU ARE STRESSED OUT YOU WILL DO WHAT YOU ARE TRAINED TO DO... NO MORE ,, NO LESS....