SlowShooter
SeaWaves not TigerStripes
I do not have the tool to measure the chamber. French Web site calls for 12mm. I choose 12.2 mm and felt a bit tight. To ensure smooth chambering, I moped out the chamber for every shot. After trying both regular percussion cap (winged) filled with black powder and percussion cap filled with toy cap and some of black powder, I think the 1st option is what I need (french website also suggests that.) Make sure the head of the needle flat enough and long enough.