About two months ago at the Bolo Tuason Cup I was able to try out the new .22 TCM bullet developed by Armscor. The little thing is based on a necked down 9mm (or .223), travels at 2,100 fps and its JHP head weighs only 40 grains. The photo below is a nifty size comparison.
It was really loud! I don't shy away from big stuff, but hearing it from a regular sized gun was something. I even flinched in anticipation before making my 1st test shot. To my surprise, it had hardly any recoil despite the thunder from each trigger pull. It was a joy to shoot such a powerful round! There was hardly any kick, and placing 5 rapid-fire shots in the center of a target 10 meters away was really easy.
This is one of the prototypes. Check out the old "Rock Island Armory" logo, and the rough "Armscor" rubber grips.
I found another video showing what it could do to a watermelon. Those things are heavy. Sure they're soft, but blowing it up like that is proof of physics. I just wish there would be more scientific data and fun stuff like ballistic gel and other penetration tests.
VS Zombies? Think of a gun that shoots light as a .22, could hit harder than a .45, and could carry twice the amount of ammo. Accurate head shots are definitely not a problem. I sure hope to see more developments for the .22 TCM!
I've got more info about this bullet's penetrating power over here.