This discussion brings to mind an old friend, that was temporarily addicted to 2" 12 ga doubles. He would be in love until he shot a round of sporting and even with light loads 50 or more shots convinced him they weren't practical. I suspect if we used the these shorter barreled guns in the grouse woods or on a quail plantation or even on one of the sporting courses I shoot at, where many of the targets are quick window shots, they would perform fine.
Not to change your subject but you mention the proof and 2 3/4" chambers. I have a couple old doubles that someone lengthened from 2 1/2" to 2 3/4". While I wouldn't have done that I am not too upset because with guns this light I use a much reduced load, 3/4 oz in guns originally proofed for 1 1/8 oz. I think a round of 25 shots with 1 1/4 oz in your 6 lb guns will have you rethinking that combination.
