I exchanged emails with JD Jones about this subject recently, dont like quoting someone and suggest you talk to him first yourself, he did say to paraphrase that the 300 savage would be mostly for handloaders and that the 30-40 Krag would be a better choice in a contender with factory ammmunition. Maybe he has changed his mind a little since he converted that one for Bill or he knew he would handload for it.