I have 15 years of reloading competition rifle ammo. But, ok, your opinion that longer barrels are better and rifles are more ergonomic is something I’ll really have to consider.
I’m glad we can agree that the actual differences between rifle and pistol ammunition matter “too”.
EDIT: Also your example is… not good. Almost all 9x19mm handgun ammo is going to have max potential in a 8-12” barrel. A 16” is doing next to nothing. All a longer barrel is doing at that point is introducing worse harmonics for a negligible difference in muzzle velocity, probably not even noticeable outside of the standard deviation. It was a good example for giving me insight to your background on this topic.
I’m glad we can agree that the actual differences between rifle and pistol ammunition matter “too”.
EDIT: Also your example is… not good. Almost all 9x19mm handgun ammo is going to have max potential in a 8-12” barrel. A 16” is doing next to nothing. All a longer barrel is doing at that point is introducing worse harmonics for a negligible difference in muzzle velocity, probably not even noticeable outside of the standard deviation. It was a good example for giving me insight to your background on this topic.