Ok guys Im thinking about giving my dad my 1100 slug gun and building a new one, but I have a few questions first. As far as barrels go what would you recommend for sabots?

Ive done some looking and they very a lot in length and twist rate. The Mossberg barrels Ive seen are 1 in 36" twist and 24", the hastings are 1 in 34"twist and 20-26", the remingtons are 1 in 28"twist, and the american slug barrels are 1 in 26"twist and 24".

What is your opinion on the difference in accuracy between an auto-loader and a pump? so what gun, barrel, and bullet combos are you shooting and what kinda accuracy are you achieving?

Im planning on using an 870 or 1100 with a holosight or some other type of electronic sight. Does anyone have any experience with other types of electronic sights