When I got my 500 S&W barrel I asked H&R about the possibility of the 460 and was told at that time they had no plans to make a 460 handi. I don't know if that will ever change, but i think the 500 is pushing the limits with the handi action/barrel lug design. There have been several 500 barrels experience lug set back with full power loads. The 460 has a pressure limit 5,000 PSI above the 500 so if H&R is experiencing problems with the 500 I doubt they would attempt the 460 which could be loaded within SAAMI specs another 5,000 psi.