I have a 17 inch Encore 209x50 that I have on my pistol frame and let me tell you , it shoots good.
That being said, I am going to get a .54 cal Side lock pistol to match up with my "Renny Gals". 2 .54 flintlocks, 1 .54 caplock, and 1 .50 30 inch round ball barrel Renegades.