So is it the 12ga chambered for 2" shells or the 2" shells that get the love? Aside from RST who else in the states supplies a 2 inch shell?
Interesting question. I'm not sure why some choose to shoot a 2" shell in a 2.5" or 2.75" gun. There are plenty of low pressure loads for those chambered guns. The 2" twelve was originally built to be light (5lbs 4oz to 5lbs 11oz). The guns have slightly (very slightly) slimmer 12 gauge dimensions and a similar view down the barrels. As such, they are fast handling and a nice gun for walked up hunting. The 2" gun is the reason people "love" the chambering.
Ken
I definitely get it, just curious after reading how the 3/4 ounce 28ga load is a good match for the .550 bore diameter and thought maybe the 2" load for .729 was a similar match. Reminds me of cane fly rods, there seems to be a rod length/line weight combination that just seems to be ideal, like a 7ft 4wt or an 8ft 6wt. That was the thought behind the question. It can get more technical like load data and fly rod tapers, but those would be tweeks to maximize performance.
