I too am very interested in getting some RMR .45 Nukes. Many IPSC competitors often shoot 200-205gr SWC with 5.85g W231 which chron @ apx. 950fps.
Given that typical performance, if RMR can produce a.45 NUKE weighted around 200gr, then I believe it would instantly become a new defensive standard for sure! I have brass just waiting for the new .45 Nuke to be offered!!!