Any entity that has done life cycle testing on both Platforms will show that the G17 will last longer than the G22.
Its physics - as the .40S&W round has a lot more juice than the 9mm.
However, for most people's practical purposes they will last equally as long, and if your someone who can afford to shoot 40K of .40S&W a year thru a Glock, the idea of replacing a pistol every year will not phase you, as the ammo will be 100X more the price of a new gun.
Generally though either model of Glock will be fine for just about anyone here.
The difference between 9mm, .40S&W, or .45ACP will modern JHP ammo is pretty negligible, unless you have an intermediate barrier or suppressed requirement the 9mm round will likely be you best choice.
Its physics - as the .40S&W round has a lot more juice than the 9mm.
However, for most people's practical purposes they will last equally as long, and if your someone who can afford to shoot 40K of .40S&W a year thru a Glock, the idea of replacing a pistol every year will not phase you, as the ammo will be 100X more the price of a new gun.
Generally though either model of Glock will be fine for just about anyone here.
The difference between 9mm, .40S&W, or .45ACP will modern JHP ammo is pretty negligible, unless you have an intermediate barrier or suppressed requirement the 9mm round will likely be you best choice.





















































