That barrel is going to be a copper-fouling mother lover! It is a cut rifle barrel; one manufacturer,in particular, is making some barrels that have a lot of deep cutter marks in the groove! Button rifle barrels do not have those long cutter marks that go from breech to muzzle.
Your gunsmith should always inspect the bore prior to chambering, and for that matter, you should also! If your gunsmith does not inspect barrels prior to chambering, then find a gunsmith that does! Assume NOTHING!
When a gunsmith provides a barrel, there may be a different "warranty" than when you send him a barrel to chamber. Also, gunsmiths have more pull with a barrel maker than an individual.
Teslong bore scope videos and pictures I feel will bump up the quality of all services.
I am no gunsmith. Brux-cut rifle barrels are the smoothest I have ever looked at, and Krieger's service is second to NONE! Service after the sale is an important factor in a barrel's price as Dieselsteve has just found out the hard way. Those cutter marks in DieselSteve's barrel will foul like crazy, so good copper solvent is going to be a must. There is NO WAY to lap smooth those cutter marks in the barrel without destroying the barrel. KG12 and Montana Extreme Copper solvent is your friend, and de-coppering after 15-20 rounds will probably be normal for the life of the barrel.
I opt for going to a lighter contour vs using a carbon wrap barrel, for many reasons....that is just me.
Some lessons are hard learned, Rough barrel/bad customer service...been there/done that! $89-$149 Teslong bore scope saves a lot of headaches/money and will absolutely be a necessity when it comes to cleaning this barrel.
I had a barrel that looked like this with cutter marks from front to back, and it was hard to work up a load it copper fouled so badly. I did find a very accurate load, but the barrel needed de-coppering every 9 shots, 7 Rem mag with 140's at 3200 fps.
For guys on a budget, X-Caliber barrels are smooth as glass, button rifle'd. Recently, I had 4 Wilson barrels chambered(button rifle'd)and they were all very smooth, 6 BRA and 22-243 AI. For my cut rifle barrels, BRUX and Krieger. Those Krieger Boys, if you are not happy, they will make you happy! Nuff said, decades of World Class Customer Service!