RE: Remington duplex 4x6
You never know until you pattern them..
Years ago, when I first bought my 11-87 SP , the best pattern I could find was with Rem 4x6 3" duplex, with the extended "turkey full" choke that came with the gun...It was barely adequate at 40 yards, but I killed a few gobblers with it..
I eventually bought a Kick's Gobblin' Thunder .665 that patterned much better with other loads..
Patterna few of the duplex..They may work fine, but I suspect that in a 2 3/4 gun your max sure kill range will be less than 40 yards...Not a big deal unless you are into shooting turkeys at extended ranges..