I have a TC encore with Fox Ridge 50 ml pistol barrel--using
300 gr. Scorpion PT Gold Polymer Tip + 80 gr. blackmag3 powder=1550 fps.
I got 3 shot- 4 inch group off of pistol bench rest yesterday at 100 yards. Twice
Had sighted in at 50 yards last year and resighted in again at 50 yards. Held 3" over heart on silhouette deer target.
Had similar results last year with 300 gr XTP's.
More loads can be seen at High Performance Muzzleloading-all are for rifle but you can adjust. They have report on Blackhorn 209 which I think will work good in the pistol.
Reviews of each of these can also be found at
http://www.chuckhawks.com/index2h.muzzleloader.htm scroll down 2/3 of page to "powder cap and primer".
I recently got an MGM 12" 44 mag barrel with closeable brake. Shoots soft and accurately. Look forward to hearing about your ml barrel.
http://www.hpmuzzleloading.com/MMLHome.htmlhttp://www.harvesterbullets.com/scorpionPTgold.htmhttp://mdm-muzzleloaders.com/ you can buy Blackmag3 here