Greg,
This might sound odd but I discovered it by mistake so I will offer it up for what ever it is worth. When I first purchased my Encore in 2003, I contacted TC about breaking in the barrel. The person I spoke with mentioned just shooting the rifle for 50 shots or so (cleaning between shots) with 70-80 grains of powder at a target but not to worry about groups. He said don?t worry about using anything too expensive so I used some .50 cal 245 grain Buffalo Ball-ets since I have some laying around for a 1-48 twist side hammer. This things really grouped good at 50 yards in my Encore during that break in day at the range. I have done the same thing with my Pro-Hunter with similar results accuracy wise and so has my hunting partner with 2 Omega?s and 1 Triumph. Maybe we were just lucky, but these seem to be a good and accurate conical in at least some fast twist TC rifles. I liked using this bullet in my side hammer during some Missouri managed hunts and in fact killed 7 deer with it using only 60 grains of powder. (70 yards and less was the distance.)
Doing a quick search, I see that these Ball-ets are or were offered in .45 but are just 200 grains and that a .45 cal 285 grain normal conical are or were offered too. (I have nothing to offer on these.)
Curtis