Great to hear someone stand behind their product!So figured I'd stop back around and update, Browning is replacing the rifle with a new one as it did not meet their accuracy specs after the second test. So once I get the new one in I'll be able to test it and provide another update.
Additionally I have some more trigger time behind the 6.5 PRC in my rifle and it pretty much confirmed it was not the cartridge, scope or my handloads that were the problem.
You are wasting time and money switching bullets and ammo at this point. You have something else wrong. Switch scopes and shooter first to confirm not the scope or you. THEN you can narrow it down. Make sure no base screws touching the bolt inside the action. Finally, call Browning, bet they will want it back to check it. Not good PR like it is
I've heard some people say they get half moa from handloads with xbolts in 6.5 cm and 6.5 prc. 1 moa is the best I got out of three xbolts using factory ammo which I'm not complaining about. From my experience with factory rifles, I no longer expect any more accuracy from a Browning than I do from any other manufacturer on average. I don't blame you about being dissatisfied with the accuracy you are getting. 7mm rem mag is not typically a finicky round either. I would try some federal 165gr Sierra loaded ammo. You should see less than 1.25 moa from that load. I get about .75 moa out of it. Federal 150 fusions should shoot well also. You should be able to find a factory load that shoots close to 1 moa on average. If it won't do that, it probably has a problem. I would think that 2.5 moa would be the absolute worst you would see out of factory ammo that the rifle likes the least. I saw 2.5 moa with my xbolt 300wm with factory ammo that it liked the least and .75 to 1 moa with factory ammo that it liked the best which was nosler brand. Sometimes it took trying 5-7 different types of factory ammo to find something that shot good in my factory rifles. I handload now.I have the Max LR in 7mm mag and can't get it to shoot under 2 1/2" at 100 yards. Tried hand loads and factory. I sent it back to Browning and they sent it back to me with a wallowed out hole target and said it was fixed. I finally got time to mount a picatinny rail and one of my Zeiss scopes. I torqued the base and screws to 18 inch pounds and shot 175 gr Remington Coreloks because they said that's what they shot through it. Still no better! I have tried differant scopes that proven true on my other rifles, I've cleaned throughly. I'm disgusted to say the least. It's going to be some awfully bad PR for Browning if they don't get this rifle right.