Tip: Just so you know the T/C Hawken models in 50 & 54 caliber. It's factory installed 1-48 barrel is 2" longer at (28") than the Renegades (26").
Although each model has the Quick Load Accurizor. That boring install removes 2" of rifling. Those shooting the Renegade 50 & 54s have 24" of overall barrel rifling.
Tip: Swamp lathed barrels are known to interfere with a rifled barrels harmonics. (So I've come to understand.)
I never got to where I prefer a certain barrel length. Although I do have different models of firearms from one manufacture that either shoot well or they don't. (>for me<)
For instance. Have a White Mtn Carbine in 54 cal w/21" barrel having a 1-48 twist & >Accurizor.< Which reduces the barrels rifling to 19". Rifle
sucks in accuracy. "Better to throw a brick at the old barn door than waste my time shooting at it with that White Mtn carbine." I keep it as a reminder> never again buy another short barreled B/P carbine.
Have a 54 Hawkin that had a 28" barrel with a 1-48 twist which shot so so pretty good. (good for me is 100 yard 1-1/2 to 2" grouping accuracy)
Swapped out that 54s 1-48 barrel with a T/C Factory 1-66 Round Ball Only barrel. Gained 2" in length and sight plain (30")__ Yup!! again. Lost 2" of its rifling to the Accurizor install. 28" of overall rifling gets the job done.
Although that Rd Ball Barrel having a 1-66 twist rate is slightly more accurate than its predecessor w/1-48. But there is a draw back in such 1-66 rifling and lazier twists.
i.e. Unable to shoot bullets or sabot projectiles accurately can be a handi-cap for some hunter/shooters.
Finally, what barrel length would you suggest for a wooded, Western mountain environment?
30 to 32" octagon is plenty. More barrel length only increases firearms weight and too slows its shooters reaction time. Where the big difference comes into play. >caliber chosen.