"we dont recommend the use of reloads in our barrels"................
...............that's pretty bad advice I thought
Most firearms manufacturers will not warranty their firearms if it is found that you are firing reloaded ammunition in their guns. That is extremely sound advice from a firearms manufacturer that has to carry millions of dollars of liability insurance to cover themselves against Joe Public idiots using their products.
I have never used a Bergara barreled rifle but if the barrel is indeed bad with an off center crown then CVA will take care of the problem.
However, I recommend that your father not tell them he is using reloaded ammo if you want it to get fixed under warranty.