to answer a few ? I loaded 90 gr loose pyrodex,300gr sabot shot once i field,apparent miss never seen any blood or find deer, reloaded same load,yes single load with 90gr checked powder before leaving house,came home decidedto unload,laid across hood of truck and fired,barrel directly above scope bursted blowing half scope 30ft behind me,luckilymissing my head only suffering hearing loss thanks for concern