Bill, Pretty observant, Ammo is Super X and is 1 5/8oz.[memory lapse again] 2 7/8", #4 shot. At the time I bought the ammo, my only 10bore was a Geo. Bate, 10lb, SXS. One shot a year. When do you think this Super X was manufactured? And when were the last 2 7/8" guns made and by who/whom ?? Why would Winchester put out a 2 7/8" shell when the world was full of early hammer and hammerless short 10's and none on the drawing boards? Randy

RMC