Shades
I think i was that guy you mentioned who shot with you at the Barrie match, I also live in Caledon, (Palgrave) I have some HS-6 and other powders that I can give you to try, to get you started. But if I was you I would try to source 135s or 155s like others have said. You can contact me at Mayneref@rogers.com if you like.