i was reading an article on one then an switched pages.. 'dumb'... when i tried to go back i lost it never did find it again, but here is what i got left of it... James Patric; Shooting The 25 Souper Improved; Precision Shooting, May 1998; pp. 35-42. what i remember or thinki do is it is actually called a .25-243 improved ?
there is in the #10 an 11 volume of cartridges of the world a small write-up of the 25 humdinger in the wildcat section, .. i believe or want to believe its the same cartridge i'm thinking of building -- 25-308 AI
when i mention of building this thing it seem most all revert me to a simpler deal.. to either buying a .260 cal or making a .257 AI..
somehow i see more potential in my project version