With the advent of a easing of the law in great lakes states. Winchester is releasing a new cartridge, that they named the 350 legend. Supposedly if my info is correct it will headspace on the mouth as does a 45 acp. With a spec of 55,000 psi going in it will supposedly match the 35 rem, and they say the fastest cartridge in the world. How can a blown out 223 case to 35 caliber that holds limited case capacity follow thru with these claims. 35 calibers have had a limited following. I know, own a whelen myself. Could see where this cartridge will help, people that have been using shotguns, but i believe that their engineers could have found a better case to work wiith. Too early to tell but i believe it will fail. What do you think?