Ardent
CGN Ultra frequent flyer
I seem to recall seeing some .416 brass in Williams Arms in Port Perry, but it's been a while since I was in there Google should give you contact info.
Left him a message and will try back, appreciate the lead.
Calum the .505 is amongst the largest practical rifles, the 2 bore is in a class of its own, of the utterly unbelievable. Doesn't mean I wouldn't want to try it.