I've heard firearms referred to as the simplest for of internal combustion engine, with the bullet acting as the piston. Just like engines, "there is no replacement for displacement".
When limited by rules of engagement to hardball ammo only, this rule is especially true.
I've also heard it said, and I agree with it, that "a 9mm is a .45 set on stun".
![](http://www.joebrower.com/images_RKBA/Gadsden_flag.gif)
Thanks for the bump of Hack's letter & your good info from personal experience. My P89 9mm is ok for targets, but I wouldn't trust my life on the round.
Why did we accept the Euro standard ? If it had to be metric why not the nearest mm cartrige & size to a .45 ?
Best to you, harpseal