One of many good reason to reload. I trimmed 5,000 hulls to 67MM for all 2 1/2" chambered gun needs. 67MM is considered proper length hulls for 2 1/2" or 65MM chambered guns. And I only use one type of hull for all my short shell loads. Every shell is loaded to the same pressure, same velocity and only vary in shot size. If I can not do it with 1 ounce of 7, 7 1/2, 8 or 9's I need to reach for a bigger gun or payload. Even my 3" chambered British guns seem to do perfectly fine with 67Mm, 1 ounce loads. I do shoot 2 3/4" loads in them if needed, but they are proofed for 4 ton not the lesser 2 1/2" proof pressure levels. Using factor shells is much more difficult and more expensive when you have short chambered guns. Hence one of my reasons to reload. Plus I enjoy doing it.
