I stumbled across a trade in 20"Beretta 1201 FP with rifle sights that was cheap enough I couldn't pass up. If anyone has one what slugs are you using? I would like to avoid wasting a bunch of money and ammo to find a load the gun likes. I haven't used slugs much in the past but from what I have heard find a rifled slug that a gun likes can be an expensieve and painful process. Also what size groups can I expect at 100 yards?