Tried some 90 BSB in front of 62 Grains of H4350 and the results were disappointing. Thanks to Lanman who graciously gave me 12 of these, I was able to try a few out. Now it makes me want to go buy a box and try to find a good load for them. My groups on my .270 started to open up with 130 Grain Ballistic Tips, so I thoroughly cleaned it and the groups returned to normal.