I have been shooting these three loads, all bought at Walmart for about $20/case.
Remington 2-3/4, 1oz, 6shot
Federal 2-3/4, 1-1/8oz, 7shot
Winchester 2-3/4, 1-1/8oz, 7-1/2shot
All cycle near flawless in my 11707. I have been shooting these for the past 3 years, literally thousands of rounds. I say near flawless because I have noticed if I get lazy and hold the gun loosely it will sometimes (very rarely) fail to eject. Not all 2-3/4 rounds are the same, but it is worth noting that 7 of these will fit in the extended mag tube.