I've got a 6mm SPC in the works. Mine will be the 6.8 case necked down with no other modifications. My original plan was to do a 6mm-204 Ruger, but there's no .204 brass to be had and I've got plenty of 6.8 brass. This rifle will mostly be fed 80-90 grain bullets for deer. Dave Kiff at PT&G spec'd a reamer, and a 1/8 Hart barrel is in the que. The donor rifle is a stainless Ruger 77 .223.
Anyone else running a 6mm SPC?
