A grade 8 shouldn't be soft steel, it should be about high 30's or low 40's RC, which is pretty hard but not brittle by any means. About like a bolt action reciever from Rem or a little harder. The bushings will be fine in this metal. The firing pins could be a bit harder to last longer, but I think you'll be ok for the short run at least..

Last edited by Chuck H; 08/29/08 04:39 PM.