That is a super valuable website. If my pet store adventures fail, I know where to turn to.
Thought there might be something helpful here for your shotguns maybe?
That's decent because of the shipping, but you can get them for $19.50 each here, but with international shipping:
I ordered from them for my first order of shells, and it was free of problems.
Mr. notrabies sir, I don't know whether this is a good deal or not, but I saw this while browsing the interwebs