I used W748, H4895 and IMR 4198 under 55 grain FMJ in 223
W748 meters the best and IMR4198 the least as it is long grained. I like IMR4198 as it goes farther, requiring only 19.0 grains for my recipe.
Well, since no one has mentioned it, I will chime in with a vote for H322. I tried it on a whim, and in my Savage 12VLP it has proven as accurate (if no more so) than H335. This is with 60 gr. Sierra Varminters.
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