Thanks, mxbob! Mine has finish problems, but seems very tight...
I have shot older top breaks in.32 and .38 S&W, and even a Model 1 .22 using BB caps...(The Model 1 tip up 7 shot has a reputation, thanks to a Mark Twain story, for being wildly inaccurate. I found that the one of mine that I actually fired was not inaccurate at all.)