I have an upcoming class at TruPrep in Marietta called "Defensive Shotgun: Setup & Use". I'll cover:
-Brief history of the shotgun's use as a combat arm
-Pump vs semi-auto vs break-action
-Semi-autos, gas-operated vs recoil-operated vs inertia-operated
-Pros and cons of various manufacturers' models
-Differences between an 870 Police model and a non-Police model
-Ammunition
-Accessories, such as sights, lights, optics, slings, ammo carriers, stocks, etc.
-Differences in chokes, backboring, and lengthening of the forcing cone(s)
-Loading, unloading, and switching loads with various models
-Use of different types of slings
-Transitioning to a Secondary Weapon (handgun)
-Use of strong and support side cover
-Maintenance
-Safe storage
-Brief history of the shotgun's use as a combat arm
-Pump vs semi-auto vs break-action
-Semi-autos, gas-operated vs recoil-operated vs inertia-operated
-Pros and cons of various manufacturers' models
-Differences between an 870 Police model and a non-Police model
-Ammunition
-Accessories, such as sights, lights, optics, slings, ammo carriers, stocks, etc.
-Differences in chokes, backboring, and lengthening of the forcing cone(s)
-Loading, unloading, and switching loads with various models
-Use of different types of slings
-Transitioning to a Secondary Weapon (handgun)
-Use of strong and support side cover
-Maintenance
-Safe storage