Yes, the 10mm is definitely better than the 40 S&W - mostly due to its versatility, as you have read in some of the above comments. A few years ago I got the itch real bad for a 10mm. Got lucky and found a NIB Springfield Armory Omega, with the 6" ported barrel. Paid hefty bucks. Then, went even off the deep end even more and grabbed an AMT in 10mm Magnum in used condition. Not happy with it though as it looks rough (stainless) and I like pretty pistols, but more importantly it fails to eject quite often. Haven't had it looked at by a Dr. yet. Some day, I guess. Does anybody know if someone else makes a pistol in 10mm Magnum? Wayne