The amount of information I have received is just incredible, so I have contacted PRE64, the company I purchased the 300 H and H Barrel from. I am waiting for a response from their gunsmith right now. I will be happy to send them the barreled action, and some Dummy Rounds, and ask them to do what ever is necessary. Machine where required, and replace the Follower and Spring and Mag well, with parts of a correct length. In addition, I am bidding on a 1956 Super Grade, on Gun Broker. The rifle started life as a 300 H and H , and has been rechambered to 300 Weatherby mag. ( a Caliber I shoot and have loaded for) I have been told, it cannot returned to 300 H and H dimensions , but I do have the Winchester 300 H and H barrel, so it may just mean taking off the existing 300 H and H , 26 inch barrel, and using the Winchester 26 inch 300 H and H barrel I already purchased. Thanks to you all, I have not given up hope of having a second Pre 64 H and H . The story will continue, and its not so sad anymore.