[newbegunner]

If a 4 inch barrel is used for 9mm +p 135 grain hp optimum testing what if anything is affected when that ammo is used in a handgun with a 3.4 inch barrel? Thanks in advance.

 

[Axxe55]

If a 4 inch barrel is used for 9mm +p 135 grain hp optimum testing what if anything is affected when that ammo is used in a handgun with a 3.4 inch barrel? Thanks in advance.

it will probably lose a very small amount of muzzle velocity. not enough to be noticed unless a person uses a chronograph to measure it.

 

[tri70]

I like to do a ******* water jug test, pop bottles or milk jugs.