Barrel length help for my 223 bighorn tl3 build

[Mike112288]

Is 18” or 20” too short? I don’t mind losing a tiny bit velocity. Just not tons of loss

 

[Blastattack]

What is it's purpose in life? Hard to answer any question if you don't tell us what it's being used for.

 

[Mike112288]

For varmint, target shooting. Nothing competitive I’m not competing anywhere. Unless I reload I doubtfully will use 40 rain v max. 50-75 grain more less would be nice. Or even 59-69 grain sierras. 1-8 or 1-9 twist is where I’m leaning. 20-22 inch barrel I think? I’d like a nice short 18” barrel but don’t wanna lose a ton of speed