Thank you for the info, I just had a couple grad students from OIT stop by the farm wanting to shoot coyotes, long story short they agreed to do the computer work to come up with a cnc model of the mono block. Since I do not have a donor gun yet I gave them my Francotte double in 45-120 express. They said it should not be that hard of a project, they also suggested laser duplicating. by the way they killed three dogs in about an hour.