Before I can answer this I have to ask;
What is the intended purpose of the rifle and what is your current skill level.
F Class?
FTR?
Typical 200/300/600 yards service rifle or Match Rifle?
Shooting off Tailgate at the farm?
Other?
If you are shooting a 20" Standard Service Rifle or longer than 20" Match Rifle Full Distance Cross the Course from the 200 yard standing slow fire, 200 yard sitting rapid fire stages, 300 prone rapid stages then out to 600 yards prone from a sling ( Full Course XTC ) and you are a Highmaster Caliber shooter consistently shooting 98% or better scores and you get average / typical life out of it you will most likely be happy up to at least,,, 4000 rounds or so before you see a drop-off in performance that costs you points that were not something you screwed up on. They will show up in 300 rapid and 600 slow prone stages 1st and will be noticed by reduced X count, using more of the 10 ring and the occasional 9 or worse that you called right down the pipe as perfectly executed shot
There are reports of some dying much sooner and some living much longer but those are mostly anomalies and not typical.
If you are shooting a 20" Standard Service Rifle Full Distance Cross the Course and you are a new shooter... Whole different story...
New shooters that are shooting in the Marksman to Expert score ranges could be shooting a Kreiger with over 10k rounds on it and would never know the difference as the shots that aren't 10's and X's are primarily caused by things they are not doing correctly
XTC Service Rifle is a skill / position game and 100% not an equipment race where money spent buys you points that move you up the results page.
Top shelf $400 - $500 barrels are considered by many to be money wasted on a beginner shooter as it takes at least a dozen matches and substantial practice with a decent coach helping you start off on the right foot. By the time the shooter has the skill ( 4000'ish rounds ) the barrel is going downhill holding them back.
The $220 White Oak button rifled Wilson barrels often shoot just as well as the expensive cut rifled Kreigers or Bartleins but typically only last half as long.
https://www.whiteoakarmament.com/custom-post-ban-service-rifle-barrel.html
If you have a good coach and you are a fast learner you could be shooting Master Scores ( > 94% ) full course by the time you wear out your first $220 Wilson barrel. That is the time to decide if you want to spend double for the K or B cut rifled tube. The only thing the higher $$ cut rifled barrels typically buy you is time before you need to change the barrel.
Most of us use at least two identical uppers.
One for short range practice and one for full distance matches as described here.
http://www.sw-hearing.com/konrad/thoughts/barrels.html
Offhand and sitting from 200 yards SR targets have a huge 10 ring ( 7" Diameter ) shots out of the 10 ring are on this target at 200 yards are 99% the shooters fault even with a kreiger with over 10K rounds thru it.
In this game with Service or Match Rifle Master / Highmaster isn't accomplished at the Reloading bench, It is accomplished on the range. You need large amounts of good ammo to improve as opposed to small amounts of ammo that took lots of time at the reloading bench being meticulously loaded.
If you are shooting Benchrest, F Class or FTR those are more equipment race games take far less time to shoot Master / HighMaster scores in so very little of all I typed above will apply.
So,
What discipline will you be shooting this barrel in?
No matter what Glad to have you shooting in organized events
George
