Good slugs are pushing $5 each here too. Most are not but there are plenty in the $17/5 range. Funny thing is though my muzzle loaders will equal or beat that performance in many cases for much less. I can only guess 45/70 would be pretty common up there. All the cheaper single shots i mentioned are offered in 45/70. The Henry in 308 sounds like a really good all around rifle. Ammo is extremely common just about anywhere.