Browning Hells Canyon muzzle Brake

Hey everyone, need some gunsmithing tips. Just bought Halls Canyon in 6.5 creedmoor. Real nice little deer rifle for next year. In the process of taking it apart and cleaning it all up and have small problem. I can not. Get the damn muzzle brake off. Tried everything short of clamping on vice grips. Any tips that might help me to get it to break free. Otherwise I’ll have to take it back to the shop (an hour away) and let them deal with it. Thanks
 
Brand new in the box. I’m sure they’ll take care of it/me. Long time customer and this is the third brand new rifle plus two scopes I’ve bought from them in the past 10 months. Starting by meeting their gunsmith today, see if he can pop it loose. They really ought to put a drop of anti seize or something right at the factory. From manufacture to sale date could be a couple of years. Enough time to permanently seize and require a barrel change.
 
Some tend to be tight out of the box. Try using a screw driver or pin the size of the holes in the break. Tape them up to prevent marking. If that doesn't help call them up and they should help.