I did load work ups with 75, 80, and 88 eldm. 18" craddock button barrel, cfe 223 powder. 75 were about 2850 at book max. 80 were about 2800 at book max, and 88 were about 2600 at book max. I'm in the camp that prefers 80's in an 18" barrel. 88's don't have enough time to get up to speed. I'm...