When I started using 8208XBR, it was because it had what looked to be a wider range of usage, and found that to be correct. For me, it has worked well in 223, 223AI, 6BR, and 308.
The only downside is that it seems to have a much wider variance from lot to lot. I was running 23.6 grains behind the 77 Nosler but started piercing primers when I went to the next bottle. Dropping down to 23.2 and all seems well.
In 223AI, I've sent the 75 Amax at 3010 FPS out of a 22" barrel. It gets to 1K with only 7.4 mils of elevation.
"The sword is more important than the shield, and skill is more important than either. The final weapon is the brain. All else is supplemental." John Steinbeck
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