JWG
MD is correct it might really depend on what state you might be hunting... and from the looks of your profile - it looks like it could be Colorado and in that case the bullet choice woul have to change...
.503/460 gr MTNex Bull Shop conical, .510 shot card, 90 grains T7-2f...
But then there is another problem - you will need to find out if your Encore will shoot a conical.... A few TC guns with the QLA do have problems with conical because the QLA is not concentric with the bore..