I recently added this beautiful, 100% INERT, US 105mm, M900 APFSDS-T Testing Slug, to my collection. I normally don’t target (Pun Intended) inert SLUG projectiles, but the, M900 is the only US Type Classified and adopted for US Service,105mm APFSDS-T round not represented in my collection. Missing that one so I was thrilled to add this testing round.
It came with an unfired, unprimed, Steel M150B1 case. The tactical, M900 uses M148A1B1 steel case and a modified (shortened) ELEC M120 primer. My question is, during the R&D stages where I am guessing this SLUG would be used, would they use a tactical M148A1B1 case or could they substitute other cases with the same pattern, for the M68 Gun? I have noticed that most, US, APDS and TPDS 105mm projectiles are crimped to M1501B1cases and most APFSDS rounds utilize the M148A1B1 cases. The only difference I can notice is that the M150B1 case is about 1/4" taller.
I would like to eventually section a window out of an empty case, but want to make sure that it is an accurate match.
Thanks big time for any help :-)