The Nosler No. 7 manual lists Benchmark as the most accurate powder in their testing in .223 Remington with both 50 and 52 gr bullets as well as 60 and 62 gr bullets. It also produced the highest velocity with the 50/52 gr bullets. I have tried it and got very good results with 40 gr bullets and intend to load some with 50 gr Ballistic Tips as well. I am confident it will give very good results when paired with good quality bullets, both accuracy and velocity wise. I still like Ramshot TAC, but these days, you might have to take whatever you can find.