Have you called all of the following:
Reliable Gun, Lever Arms in Vancouver.
International Shooting Supplies in Surrey.
HiCal, Belle Sports in Mission.
Siwash Sports, Chilliwack Dart and Tackle in Chilliwack.
Bass Pro in Tsawassen
Cabelas in Abby
Tiger Arms in PoCo
Yes, either by phone or saw on-line they were out of stock, except Belle's who wants $70 for a box
Couple gun shops in Merritt.
Gunfishing
Pondeerosa Sports
Canadian Tire in Merritt has a decent ammo supply.
Is the Powder Keg on the North Shore still around?
They are going to be $80-100/box at gun shows.
You are looking for ammo for an uncommon rifle, heck, 308 and 3006 are running $50 and $60 a box for basic cup and core. If you still believe that ammo should be $1 a shot or less you are well behind the times.