Dear friends, I have an old teppo, 130 cm long, 12.5 mm bore, Hormady 480 round balls with patch, 2.8 grams of Swiss black powder n. 3, but when I shoot I'm always afraid. Black powder and fuse don't get along. I miss the Samurai armor, but it, in Italy, costs around € 40,000...I recommend you to use glasses to protect yourself. Saluti dal Tiro a Segno Nazionale di Milano, ciao