Just wondering. I see posts where guys are making .410 shotshells out of both 303 British and 444 Marlin. So, is it possible to make 444 Marlin from 303 British. Would be fired in a single shot so I don't think length would be an issue. 303 Simply fireformed in a 444 chamber?? Don't really need to do it right now but just wondering in case I need to some day. Thanks.