The Accura rifles are not picky and will shoot almost any good bullet well if paired with the right sabot and powder load. 100-110 grof BH209 works well for most loads with 110 gr seemingly the sweet spot for most hunting loads. The CVAs like a firm sabot/bullet fit. Not so excessively tight to be difficult to load but requiring some firm pressure to load. In 3 different CVA rifles, with most bullets, I had best results with smooth sabots over the crush rib sabots. There were some exceptions. The attached photo will give you some ideas for a starting point. These aren't the only loads that will shoot well but were 5 of my favorites. 110 gr BH209 was used for all loads. 5 shots each target. 100 yd range. Chronograph data included.
Left to right: Hornady .45 300 gn SST & Harvester short smooth black sabot 1790 fps, CEB .44 250 gn Maximus & Harvester smooth green sabot 1945 fps, Parker .45 275 gn BE & Harvester red crush rib sabot 1864 fps, Hornady .429 265 gn FTX & Harvester smooth green sabot 1857 fps, Hornady .458 250 gn Monoflex & MMP orange HPH sabot 1908 fps