I used T/C conicals in a CVA side lock and T/C Thunder Hawk in line for 15+ yrs.
They provided best groups(1.5" - 2" scoped freehand at 65yrds) of anything I tried back then. I later switched from 320gr Maxi ball to 275gr Maxi Hunters simply to gain proper penetration and expansion, out to 100yrds. I used 90gr BP in CVA & 95gr BP in the T/C. The 275gr served me and Deer size game very well,not to mention there cheap and a breeze to load. I still have 1 box of each bullet.
Like Triple stated a 385gr would be more suitable for Elk.