The bore of my Accura seem to be kinda in between the 50 disc extreme, and the mountaineer. The sabot used are either the short Harvester or the long Harvester. This is when shooting 0.451, or 0.452 bullet. The disc Extreme seems to be the largest barrel; the Mountaineer is about the same as the Omega.

I use the same sabot in the Disc Extreme as in the Accura.