Does the US have a current embargo on Russian produced ammo? I think Canada still does? Is the Wolf stuff made in Russia? I've heard it's made in several countries including Hungary and Czech also. Just spit-balling.
There likely isn't enough demand for bulk, inaccurate, blasting ammo in .30-06 in Canada. We don't have the M1 Garand numbers like the US does. Even bulk steel-cased .223/5.56 and .308/7.62 is hit and miss for availability in Canada sometimes.
To feed my Garand I reload. Campro 147gr FMJ/BT bullets, free brass from the range (likely have 3k at this point), and whatever medium-burn-rate powder is cheapest and I'm blasting away for $.50 a bang.