Craig,
The 250XTP is an accurate bullet. I load it in my .45colts with Lil Gun, Unique, and H110/W296, but that LEE is one of the more accurate 'home cast' bullets I've shot (and I've shot several lbs of numerous designs).The fact that there's more of it to ingage the rifling may have something to do with it; similar to the LBT_WFN designs that I shoot. As to how it'll work in the Rowland remains to be seen. I do have the 255XTPs on hand and will shoot some of them. Your test with it are similar to what I've found (wet sand). I usually run the XTPs around 1000-1050fps. In, fact, they are usually the fisrt round 'up' in my .45colts, followed by the casts, when I 'hunting'.

I looked long and hard at the Wilson w/o the comp (lead bullets), but was concerned on how much actual shooting it would stand before starting to show significant wear problems.For me and my 'peace of mind', the Clark was the better way to go.