Wow, 120 gr of 777...that's a real thumper with a conical in front of it. Be sure to try various wads between the conical and the powder.

My Encore couldn't shoot a conical (tried 5 different kinds with several different powder weights) worth a darn and then I tried a couple of bore buttons. They helped, but I still wasn't fully satisfied. I then tried a 28 ga Pink Claybuster shotgun wad after cutting the petals off to create a nice flat surface for the conical to sit on top of. Read about this trick on another site I think.

Anyway, my groups literally went from about 10 inches or so at 50 yards to about 3 inches. If I didn't see it, I wouldn't believe it.

Want to try corn meal when I have a chance or the homemade felt buttons that several here have had success with.

Again, don't overlook trying a wad.