I tried them in one of my 7rem mag(model 700 rem,26in barrel) an it didn't like em. For one, I found out that I had a 1n9.25 twist an it wouldn't stabilize them. For what it's worth, I have found that a lot of 7mags do like H-1000 powder. I am gonna rebarrel an go to a 1n9! I've heard that the 180's do like a 1n9! Amazing what .25 in twist will do! I did however try 69grns of H-1000,fed215primer,WW brass. Closest group I could get was 1in to 1"1/2 at 100. It does however love the 168's. hope this helps.
DT