Re: Best slug for smoothbore? Choke?
i'll second "Smoothbore ONLY?!?!?" never heard that one, just sounded odd. I've seen many states/areas that are shotgun only with slugs only and no buckshot, but never a specification on smoothbore.
IN any case to answer your question, assuming this IS the case, you are in luck. get one box of each remington green box punkin balls, brenneke KO slugs, federal rifled slug and winchester "rack master" rifled slugs.
The brenneke and winchester have a "birdie"/stabilizer that stays attached to the slug (referred to as an "impact discarding stabilizer" that helps maintain bore alignment and stabilizes the slug in flight. the federal and remington are pretty much standard fare foster style slugs with a deep cavity in the back that sort of stabilize themselves.
in my experience, most smoothbores will throw the remington stuff fairly well, and will give you 6" accuracy out to 100 yards but the stabilized fare will tighten that up to 3-4" in some cases. 100 yard should be considered your max volley with these and that range for a smoothbore is considered by some to be a "hail mary" shot. keep it to 50 yards and you will hit with just about any of them, but do yourself a favor, your shotty may really prefer one over the other.
All this said, my FIL just picked up a smoothbore barrel for his 870 and it cloverleafs remington green box out to 50 yards and at 100 the slug is still stable and punches a nice round hole, but they are starting to wander a bit this far out getting 4-5" consistenly. Definitely "minute of deer"
good luck with your hunt