338 Win Mag - How short of a barrel? Suppressed or unsuppressed?

[Daz5000]

I plan on putting my Banish 338 on my 338WM. Has anyone actually went to a 20” barrel?

 

[Choupique]

I'm getting ready to chop my .338 win down from 26" to 20"

I don't expect to see a ton of speed loss. I MIGHT chop it myself in 1" increments down to 21 and see what the speeds are for a given load and have the smitty take the last inch off and make it pretty. Seems to be a common "want" on the internet to know if their .338 win should have a moon poker or really short tube on it. It's not a not a very good long range choice to begin with and I never understood why belted mags needed 26" tubes even when they were not the really overbore long range jobs (264 and 300).

I emailed AB regarding the minimum barrel length for a .338 win mag with a raptor 6 / 8 / 10.