I shot the Tomcat again this afternoon. 50 rounds of Winchester 71 grain / muzzle energy 129 / FMJ / flat nose. I shot 8 rounds of 60 grain extreme shock also. Combined with the 50 Remingtons mentioned above that makes 108 rounds without cleaning the pistol.
So far I shot 168 rounds of various amunition without a glitch.
I'm going to clean the mouse up, load her up with Extreme Shock for now and give her a rest in my pocket.
I hope this info was helpful.