9 vs 10
The two are light years apart. Far more than the 1mm numerical difference. The standard 9mm load of a 115 gr JHP of FMJ at 1200 fps or so is a minor caliber round. 9mm's can run from 90 gr up to 147 grains. 950-1400 fps.
The 10 mm is a major caliber round. Standard load of a subsonic 180 grain JHP @ 1000 fps is designed to replicate one of the better .45 ACP loadings. the 10 mm can be loaded with bullets as light as 135 gr @1500+ fps up to 180 gr JHP's @ 1300 fps. With that load it will exceed .357 magnum capabilities and approach many .41 mag loads.
The 9mm is a fine defensive round for a concealed handgun. The 10mm is a powerful cartridge for a full size pistol, not for the faint of heart.
I have both and they each have a niche in my carry selection.
The two are light years apart. Far more than the 1mm numerical difference. The standard 9mm load of a 115 gr JHP of FMJ at 1200 fps or so is a minor caliber round. 9mm's can run from 90 gr up to 147 grains. 950-1400 fps.
The 10 mm is a major caliber round. Standard load of a subsonic 180 grain JHP @ 1000 fps is designed to replicate one of the better .45 ACP loadings. the 10 mm can be loaded with bullets as light as 135 gr @1500+ fps up to 180 gr JHP's @ 1300 fps. With that load it will exceed .357 magnum capabilities and approach many .41 mag loads.
The 9mm is a fine defensive round for a concealed handgun. The 10mm is a powerful cartridge for a full size pistol, not for the faint of heart.
I have both and they each have a niche in my carry selection.