Reckon there is a lot of people shooting 2 3/4 inch shells in 2 1/2 inch chambered guns without even knowing. 2.5 inch shells are not too easy to get here but there seem to be a few around down south. There is enough demand for some lead shot in 2.5 but may take a while before we see some steel in 2.5. Not sure I would use it in my little game gun anyway.