RE: new M.L. HARD to load!
Mike - there is nothing wrong with the Powerbelts for elk. Here in Colorado, where sabots are not allowing during the designated blackpowder season, all the big sporting goods stores say that Powerbelts are the most popular bullet. Most folks are using the 348 gr. Aerotip - and a lot of hunters swear by the 405 gr. HP.
I have three T/C rifles. All of them are hard to load with the Hornady SST and the Barnes X. Firm but not bad with the T/C Shockwave. I have some of the new Harvester Crush Rib sabots, and intend to try them in the near future with the 250 gr. Barnes X, which is still the best elk bullet out there IMO.