I had to repair the hammer spring and safety on my 1989 NWTF 1300. Afterwards I took it out to pattern. It did great with all loads. The best were Hevi13 7s as expected. Wrights #2 Choke from Clark at allaboutshooting.com
Pretty tight at 20. Approx 235 in the 10" at 40yards. 3" loads, not 3.5"