No need to play the fiddle yet, or poke it with a stick! I have an over and under I am thinking of using as a turkey gun but dont have adjustable chokes. However, did some research on google and there are several companies, like Carlson chokes that will I guess you say tap the barrel if it has a certain wall thickness and prepare it for interchangeable chokes. It is like 85.00 give or take per barrel, cheaper i think if do both together of a double. I am gonna have at least one done because i like the feel of the gun.

Second, the best thing with the modified is get some shells and pattern it. 20, 30, 40 yards, and see how it hits. Maybe it will be okay to use........ use the 10 inch circle and then the turkey head targets and it will give you a good idea. Then once you know the max effective distance, you make sure you mark it some way and then wait for a tom to get close! [8D]