I know it's done. The reason I am asking is I really like the MGHP .357, 125 grain bullets out of my .357 so I was thinking of ordering the 9mm 124 gr. MGHP bullets for my VP9 and Colt 9mm 1911. I tried loading a couple .357s in 9mm cases, the cannelure sits above the case. It would be nice if could use the same bullet for two calibers.