Al recently ahad eye surgery and he will post more when he is better.

The .45-70 was a request from a soursce, other calibers is possible. The .45-70 is the first batch to gain finacial backing for the future models and variations on them . So its others on the way, but 577-450 , 303 and others is on that list . They will be made using cnc machines, not cast , so they will handle a good pressure level in them.

He will add more when he is better, but go ahead and ask more questions and i will try to respond on his behalf so good as i can .

I think for my use a 7x57R would good since its one of the easiest to get cartridges over here.