RE: Shotgun Sighting
Well as how far to shoot , you will have to make that decision. With today’s ammo shot guns are good out to 150 yards. You need to practice and become proficient at shooting long range.. I would invest in a scope .. I use a 1.5 x4 on mine plenty of scope for the woods I hunt.. I saw a Simmons at wall mart for 68.00..
Good luck.
PS check out the Lightfield slugs..