Thanks every one.
It came together yesterday. Most of my Pinnacle shooting has been done with 2F. I had played around with Pinnacle 3F several times but never really got serious about it. It burns cleaner than 2F Pinnacle. With 3F there is not as much hard white residue in the last couple inches of the bore. There was some crud in front of the breech plug. This may have been due to my failure to swab the bore with alcohol prior to loading.
Had never gotten a really good group with the 250 SST bullet in the low drag sabot before. Maybe the Pinnacle 3F did it. Am looking forward to Ft. Sill muzzleloading deer season on the 17th and OK season on the 24th. That Encore will go with me this season.