I have a Big Ithaca 10 that someone had messed with before I acquired it. The bores were different sized. I had Briley bore match and then make screw in chokes that mirror as much as possible the original profile but with a start of the current bore diameter, about .800 if memory serves. I have used it mostly for sandhill crane shooting on the Texas rice prairies. The load is 1 7/8 oz.of buffered bismuth 2's. I have regularly killed the flying t'bones at 75yds or so.
At lot of gun at 11 pounds or so that needs a kneeling or standing position.
