Sounds like I need to try the Federal HWT #7.
I tried it in 3 different 20's this past week. It is indeed impressive but not anymore than 3" #5 Hevi-shot. But I did buy about 10 years worth of Fed HW#7's, so I guess I'm gong to use it in a few. Lol
I can assure you it will blow the doors off any factory shell out there short of Apex's TSS, most especially hevi 5s. With the proper chokes for both shells, even the best out of 5 boxes of hevi 5 will not even approach HW7 at 50yds. Heck, out of a lowly $20 Primos TW choke in my SXP I get 170-190 hits in the 10 at 40. I've shot 140s with HW7 from a multitude of different chokes and different guns.
It's bad news T, try a couple diff chokes. If your running it in your little Rem, for cheap chokes I'd suggest the Primos TW(yes, it does better than the JH with HW) or the Remington Super Full Lead Only .572. Those should do 140-150 in a clean bbl. if you want even better numbers, bump up to the more expensive Trulock HW7 choke or the Nonported JEBs.