Hi Kyle, On a fixed choke gun, the taper is all in the last inch or two, the same as most of the earlier version screw in tubes. Recently tubes have gotten longer, so if anything, a newer tubed gun probably has a longer choke section than an older fixed choke gun. There really are no functional differences. On the 3.5 inch chambered barrel I would ask Harrington & Richardson and New England Firearms Customer Service for advice at Phone: (866) 776-9292

sorry to tell you but to go to a 3.5 inch gun with screwin chokes it would be much cheaper to buy a new gun screwin chokes just give you many more options what James said was true in some fixed choke guns but some had a longer smoother transition to the final choke

sorry to tell you but to go to a 3.5 inch gun with screwin chokes it would be much cheaper to buy a new gun screwin chokes just give you many more options what James said was true in some fixed choke guns but some had a longer smoother transition to the final choke

To select more than on answer you have to open the question in multiple windows before selecting a answer the select a different answer on each open window/tab

sorry to tell you but to go to a 3.5 inch gun with screwin chokes it would be much cheaper to buy a new gun screwin chokes just give you many more options what James said was true in some fixed choke guns but some had a longer smoother transition to the final choke

I've searched and can't find one either.