I shot into the top of IPSC "B" class with a S&W M66 4" shooting 158 hardcast LSWC loads with enough of the old, smoky Unique to make IPSC "major" when it was higher than it is right now.

That means I outshot a lot of .45 1911s in the process. It was a little bear cat to hang onto, but even with my small hands, quite manageable.

After a few years, the gun began to loosen up, so I bought another.