.308 - best barrel length?

[davidsog]

The change in Maximum Point Blank Range for M80 Ball going from a 28 inch barrel to a 16.5 inch barrel is you lose 29 yards.

The average over the ammunition tested was a 27 yard loss. That is going from 325 yards MPBR to a 296 MPBR.

Note the change in MPBR averages 27 yards with an 11.5 inch change in barrel length.

https://rifleshooter.com/2014/12/30...ato-barrel-length-versus-velocity-28-to-16-5/

 

[Blue Duck]

It depends on the caliber and what you are doing with it.