On a bolt gun, there's little need for a detachable box. Self loading actions use them as they are likely military based. Bolt guns don't need them much, they are limited by the ability of the shooter getting a new sight picture for every shot.
Saying detachable box mag guns aren't needed for hunting implies there aren't a lot of targets. With whitetail, maybe. NJ offers 28 tags a season, tho. Hogs, prairie dogs, and such, targets galore. Obviously, some have limited opportunity compared to others, but in no way should that ever imply some sort of moral or ethical Tier ranking. MILLIONS of hunters use box magazine rifles for hunting - likely surplus military arms. And there's the key - they are also less expensive, and that's when the subtle bolt gunner word play creeps in.
As for a box mag on a bolt gun, it doesn't address the real problem, which is breaking the cheek weld to load each shot. Ammo capacity isn't the issue with a gun that can't be shot accurately with just a few seconds for each target. The bolt gunner generally can't do that as well as a self loader - he MUST reacquire a new sight picture for each shot, and WILL remove his hand from the trigger every time to cycle the bolt.
If you have multiple targets - which some hunters do - then a bolt gun isn't the best choice, regardless of magazine type. The bolt gunner is deliberately choosing to impose more difficulty on it's use - they accept each shot will take longer to make as accurately as a selfloader, and they won't be likely to make as many. Whether that has a impact on the kind of hunting done is up to the shooter to decide, not arbitrarily imposed by others suggesting higher moral ground.