I'm wondering if it is worth switching to ballistic silvertip ammo. The super-X shoots 1.25 inch groups at 100 paces (at best) in my model 70 featherweight 7mm-08. Will the coating reduce fouling that much to make it worth the extra 5 bucks? And what about the expansion of the Nosler bullet...worth it if my shots are 50 to 100 paces? Thanks for your experience.