It's been over 20 years, but I'm pretty sure that is the model I used to own. It is the size of the S&W 63 Kit gun (J frame), not the S&W 66 .357 (K frame). In other words, it's closer to a Model 36 or 60 than to a 66 or 19.
Having said that, the only problem I recall having was that I could never get the thing to zero at 25 yards. It shot about a foot high with every .22 cartridge I could find. That's why I got rid of it.
Stryker60