As Promised, pictures of 2 shot groups. Yes, i know...however, i shot these "grps" at 100yds, in the evening, with only a bead on the shotgun...it was hard to judge bullet drop as each slug behaved differently.
Once again, the shotgun is a Browning Maxus, the Choke tube is a Browning Sabot Express Rifled Slug, and the distance is 100yds. There no optics on the shotgun, only the crappy front bead.
The Federal PRI slugs are of high end quality, and cost $15.99/box of 5. They exhibited almost no drop at 100yds...I was aiming at the top of the target, since i expected a lot of drop at this distance...I made no attempt to compensate for wind, hence the off centered groups..These slugs are sabot slugs, and so behaved more like rifle bullets...I was pleasantly surprised at the stability the rifled choke imparted on them.
The next pictures are are of the remington 2 3/4" slugger...these are dirt cheap, about $4.99/box of 5. They are rifled slugs, and exibited a lot of drop at 100yds...again, i made no attempt to correct for wind at 100yds...hence the off center groups.
I hope this helps put to rest, the notion that smooth bore shotguns with poperly designed rifled choke tubes are not accurate past 50yds.