TexasCHLforum.com

LowGrainHighPain- I will concede about the 5.7 since you seem to know more but I must inform you that your info about most 10mm loads is incorrect. SRH78 is correct in saying that many penetrate less then you think. In fact in almost all loads from 135-180 grain the .40S&W will penetrate more then the 10mm but usually the hollow point will have more expansion in 10mm because of the increased velocity. I love 10mm but it is an over hyped round perpetuated on internet forums. It falls smack in the middle of .40 s&W and .41 mag ballistic wise and while I have carried hardcast 200-230 for woods protection I would not want to use it on even a black bear (can you say mag dump). If I ever had to shoot a bear or moose etc. I would want at least a .44mag in a handgun cartridge, if not a rifle round.

Here are two loads that use the exact same bullet but one is 10mm and the other is .40S&W. This is typical of 10mmvs.40S&W.

http://www.shootingillustrated.com/inde ... osler-jhp/

http://www.shootingillustrated.com/inde ... osler-jhp/

Unless you run at least 165 grain jhp you will have fragmentation in all 10mm rounds that are full house unless they are the Barnes bullets. 165 gold dots and 180xtp hold together well but even 155 gold dots will frag because the velocities are to much for the bullet. Think of it as 9mm vs 9mm+P+. It is not uncommon for +P rounds in 9mm to penetrate less then non +P but with more expansion. Same with the .40 vs 10mm. 10mm starts to shine with 180 grain+.

The 10mm myth of blowing holes through people like a laser is false!
Edit: In all reality 180 grain .40 cal bullets penetrate similar to 230 grain .45acp. The only difference is that 10mm rounds expand more like .45acp diameter if the don't fragment, which most do if not bonded or copper! 200 grain and above is a different story because now the sectional density is greater then a 230 grain .45acp but I reserve those for woods carry as well. Any 10mm hollowpoint up to 180 grain is fine for SD carry. Anything heavier is for the woods!

Like I said though. You seem to know more about the 5.7 so I will take your word on its ballistics. It was just a fun gun that was a blast to shoot but I just couldn't make my self pay all that money for it. That's all nothing against the caliber, it is definitely and interesting idea in a handgun!

If you want another one of those shock and awe rounds try out the 9x25 Dillion. It is another round that really has no real benefit over a .357sig or 9mm+P but is louder and has more muzzle flash then any other semi auto I have ever shot. You couldn't here my 10mm or my buddys .357 mag over the thing. I think you would go blind at night if you shot it!

It was lighter then my 20 but it seemed a little longer in length and higher in height. I guess it didn't seem as well balanced. Width was about the same. Fully loaded you could tell it weighed more then my brothers Glock 17 fully loaded! Grip is almost as big as my 20sf. My girlfriend couldn't even hold it but she can shoot my brothers G17 easily. It was very accurate and fun but for the cost and it's size I would rather have 15+1 of my 10mm. I am pretty sure it could over penetrate like crazy to. I have seen a lot of them in pawn shops and in gun stores used. I don't know it's cool don't get me wrong but for that money I wouldn't buy one. It's something to take out to the range and impress people with like a 460mag or 50AE. Flash bang effect.

Fired one and it was fun but I would never carry one! It is way to big! Makes my Glock 20 seem like a compact!