i have a Remington 870 witha 18" rifled barrel with a cantilever scope mount, also have the 28" barrel for bird hunting,i shoot the Hornady SST 300 gr sabot, it is sighted in at 150 yards and will shoot 1" groups
i love this gun, but it kicks very hard, but that is only when sighting it in, never notice the kick when shooting at a deer
Lenny