I have a 45 Cal. Senaca and a 45 Cal. Hopkins & Allen. The 45 Cal. Senaca will shoot a 440 ball with patching. The 45 Cal. Hopkins & Allen shoots a 445 Cal. ball with 15 patching. It is impossible to shoot the Senaca with 445 Cal. & patching. It does not work! My question is, is there a difference in Hopkins & Allen's 45 barrel that requires a Hopkins & Allen 445 ball? rayer: