I think it would work but yhe slug might be way over groove diameter. With a heavy barrel probably not an issue, but with a thin wall barrel and a hard alloy could be a problem.
The 1x fired fio hulls show are about 0.004" larger in diameter than when new. I am going to make identical loads half with new hulls and half with 1x fired and see if it makes any difference. Also I am not going to resize the base of the 1x hulls.
BB