Why does everyone chop their barrels to an even number length?

[dårlig jeger]

I chose 16" because 15" is a lot more work.

 

[HGL]

I went 19" on my 6mm creed. Couldn't decide between 18 and 20 so I just split the difference.

 

[Mike Islander]

Same reason I set cruise control to 68 and thermostat to 72.

 

[feanor]

17” for me, but never had the stones to admit it until I saw everybody else in this thread.