http://www.ballisticproducts.com/Brochure-Loading-Shortened-Hulls/productinfo/00BSHORT/ is a brochure available from BPI on loading shortened hulls. It includes 2.5-in 12 gauge. The brochure costs about $2.
If you tell BPI what you are trying to do, they can probably send a table of load data.
A 12 gauge shot shell that started as 2.75-in then had the fold part of the crimp removed would come to be about 2.5-in long. It could be roll-crimped with O/S card and hold about the same amount of shot as the original 2.75-in hull with a fold crimp.
Last edited by J. Hall; 05/24/13 09:34 PM.
