Old No7,
A good cheek weld is very important in a rifle match, especially where the rifle is not dismounted between shots. I have found it not to be as important when hunting. I have been hunting with drillings for 50 years and never felt disadvantaged by lack of a good cheek weld. I learned early to shoot a drilling ,with my head up, like a shotgun because it is a shotgun and is stocked as such. When you shoot the rifle barrel once, either the animal is down or you have to dismount it and load it again. That disrupts the cheek weld and you very seldom need a second one( the animal is usually down or in the woods somewhere). That is one man's opinion.
Mike