[Kenny Bunk]

I watched their video, which I probably ought to have done before offering an opinion. Quite impressive. If you haven't already, take a look.

However, they did not address an issue I think might be important. That is, if the target has a any kind of harder shell, how well will this bullet penetrate and break up?

Also driving the bullet faster might make this projectile work less well. Intriguing. Perhaps they'll try it, patents permitting, with a soft ballistic tip. That might make it feed better in an automatic. Those jagged edges scare me.

But in the .38, .357, or .44 revolvers you mentioned, it should chamber just fine.

[jameslalor]

Well, “impressive” is kind of the point of an advertisement now isn’t it?

Here’s a video of a third party testing the RIP ammo: http://www.youtube.com/watch?v=psGFPRpWZ3w

The good part is right about 2 minutes, bit of showmanship framing the results leading up to it. Stick with it enough to see what rounds he used to emulate the performance of the RIP ammunition.

Suffice it to say, without spoilers, that the RIP ammo is something that actually makes a 9mm LESS effective, not more.