I am not certain of the exact BC but out to 500 yards, the 69 RMR shot pretty close to 69 SMK data that I used in Strelok. The results were hard to say how accurate the load is but with a 16\” AR, I was able to hit 100% on steel targets between 200-500 yards. The 500 yard target looked to be about 10\” X 15\”, measuring with my mil reticle.