Stogieboy. I would suggest looking at the Remington 870.They are a well made pump gun.A 3" would probably serve you well.The Rem 870 is available with Rem Chokes.There are many barrels available for it. Hasting' s makes a real nice Rifled slug barrel for it.Not to open another can of worms here. IMHO the Remington 870 is a allot better made shotgun then the Mossberg 500.
Ruger Redhawk