Deletion of .585 Hubel Express

Comment: A couple of us have made good-faith efforts to work with the original content contributor. Unfortunately, there is a  issue with that editor. We have also been unable to validate any non-trivial |reliable sources to establish notability. The only info available is on forums or  and is even under constant revision for key elements such as cartridge measurements. We tried, but I think it's time to give up
Stance: delete
Cited policy: Wikipedia:Conflict of interest (WP:COI||WP:RS||WP:OR)