Airgunsource CA

I'm in Canada, so no, I haven't experienced this issue.

That said, what on earth would you want from a Canadian store that you can't find at a better price in the States?
I think I was looking at some of the 12 FPE piston rifles like Air Arms TX 200.
My goto US dealer Pyramydair ...it's not on their website...it's a special order. Same with any 12 FPE OEM springs...etc
Maybe I've been searching on the wrong sites...all these years.
LOL maple flavored pellets
 
I agree with crowski, they almost certainly allow shipping to the States. They probably have it disabled by default to avoid issues like the JSB pellets. It's easier to generically forbid and make exceptions than to allow people to order things and then tell them they can't do it, afterwards.
I went in and put random non-pellet products into the cart, and got the same message... so that isn't it.