Pros/cons of certain shotgun modifications.

[Hank93]

Does any one have experience porting, back-boring, or forcing cone honing shotguns? I'm thinking of doing some of these modifications to an 870 express with a cut down vent rib barrel.

 

[ghostdncr]

Yep! I ported several of my shotguns when I was working in a tool and die shop that had a sinker EDM machine. Was doing a lot of trap shooting and sporting clays back then and liked the results. I've back bored a couple, too. Works well when you chop a 28" fixed choke barrel down for bird hunting and only wish to get back to an improved cylinder or thereabouts. Softening the forcing cone will turn a brutal kicker into a far gentler beast. I didn't see that one coming but my first one was on a 10ga H&R single barrel for one of my coworkers. No, it didn't suddenly kick like a 20ga A5 Browning, but it stopped knocking his fillings loose and he managed to hold still and take several turkeys with it.

 

[hrearden]

Yep! I ported several of my shotguns when I was working in a tool and die shop that had a sinker EDM machine. Was doing a lot of trap shooting and sporting clays back then and liked the results. I've back bored a couple, too. Works well when you chop a 28" fixed choke barrel down for bird hunting and only wish to get back to an improved cylinder or thereabouts. Softening the forcing cone will turn a brutal kicker into a far gentler beast. I didn't see that one coming but my first one was on a 10ga H&R single barrel for one of my coworkers. No, it didn't suddenly kick like a 20ga A5 Browning, but it stopped knocking his fillings loose and he managed to hold still and take several turkeys with it.

Kind of a side point, but a fixed choke barrel is the best cut down choice on a Remington, especially a newer Remington as their interchangeable choke barrels can be unevenly bored. That being said, the forcing cone will take care of a lot of things. It not only eases recoil, it helps with shot deformation which will keep your patterns tighter increasing your range. Couple that with handloads and watch that shooter come alive.

 

[Hookeye]

Big green had a nasty run of screwed up Remchokes around 20 yrs ago.
They've gotten way better, but I would NEVER buy a Remchoke barrel unseen.