Nice choice in gun and caliber.
Leupold VX-5, 3x15x44. I have a couple of these scopes and can't say enough good things about them. Very good glass, on the lower magnifications it is very forgiving, easy to center on your eye. I like the locking turret on a hunting scope, good feature with this scope.
I wanted to check the tracking on the first one l purchased so l did a 6" box test with it. The scope tracked perfectly. I went with the wind plex reticle and really like it. The scope has low profile turrets which is also a plus on a hunting rifle. I would highly recommend this scope
Ammunition, 154 grain Hornady interlock. Years ago l tested this bullet extensively. For accuracy and performance on game. Bullet recovery box at 15 yards out of 7mm Remington mag it would weigh up about 50 percent but would not blow up completely. On deer sized game it did do some damage if it hit the shoulder but not bad if placed behind the shoulder. All exited. Elk, only one was shot, hit behind the shoulder, no exit, bullet weighed up in the 50 percent range.
Doing a quick check on factory ammo, l would look at the Hornady 139 grain GMX offering, and the Weatherby 160 grain partition
I believe the 160 grain partition would be a good all around choice. Didn't see any factory Barnes in my check.
This has been my experiences, hopefully it's helpful