When I purchased my first 9.3x62 several years ago (CZ550), the owner passed along 20 rounds of 270gr Speer reloads using BLC2 with his recipe. I chronied them at 2500+ fps. I had no problems with them (primers, extraction), and used them hunting, but because of the maximum velocities with this caliber using other powders, I can't believe it is a safe loading and never loaded any personally.
