FWIW...most (all?) match ammo will be "standard velocity" and subsonic in rifle length barrels and more so in a 10" barrel.
It will provide low SD to test your chrono, but use your high velocity ammo for porting data.
This points to the variation coming from the ammo and not the chrono.
It will provide low SD to test your chrono, but use your high velocity ammo for porting data.
...BTW I was getting sonic cracks going over 1120 or so. (Also depending on how accurate the chrony is.)
This points to the variation coming from the ammo and not the chrono.
Last edited: