Low recoil LE 2 3/4" ammo works just fine on the street for every LE agency that uses it.
Federal Tac with FliteControl LE132-00 produces plenty of penetration with it's plated shot, faster follow up shots, and 8" patterns (not a misprint) at 25 yds. from both my Scattergun Techs. One a cyl. bore, one IC. Choke doesn't matter, since the shot isn't released until the wad has gone down range.
At 15 yds. I get a 4" "pattern".
At ten yds---one hole.
Older Fed. Tac without FliteControl begins to deteriorate at 15 yds.--good for home defense.
Hornady TAP 00 buck uses the same FliteControl wad (with same tight patterns) with 9 lead pellets.
Both have low recoil more consistent with trap loads.
Hornady also has standard power TAP ammo for semi-autos. I think Federal TAC has it now, also.
A student in our instructors class once told our former Federal firearms instructor (then with the NRA) that he preferred 3" 00 buck for SD and the instructor couldn't stop laughing, since some of the students in our class, many security personnel, had enough trouble handling standard pressure buck loads.