I have a Smith & Wesson 3000 police gun as my house gun. It takes 2 3/4" shells.
I have it loaded with 5 rounds of Remington No. 4 buck.
In a sleeve carrier on the stock I have another 5 rounds of S&B 00 buck. It's different from most other 00 buckshot loads in that it has 12 pellets, not the traditional 9. They get the extra three pellets in the shell by using a roll crimp and a disintegrating plastic top wad.
Recoil from that load is substantially higher than with standard buckshot loads with folded crimps.
I'd like to find some No. 4 with a roll crimp.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.