Try the yellow Harvester crushed rib sabots for BT bullets. Tightened my groups up plus they loaded easier then the supplied MMP yellow sabots.
If you do order the 250's get the T-EZ's. They are flat based bullets and are not as finicky as the boat tail T-MZ's. If the supplied blue MMP sabots do not shoot well pair them up with a black Harvester smooth sabot for under 300gr bullets.
Another option is the Barnes 300gr .458 Socoms. They come in 50 packs for around $45. Just try them with black and yellow crushed rib sabots and see which sabot gives better accuracy. Good luck.
