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Old 09-23-2009, 01:32 PM   #41
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when i see a 124gr bullet has more of a shock wave than a 147gr bullet , i tend to get a little suspsious about the credability of the pics there''photoshop''.

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Old 09-23-2009, 01:33 PM   #42
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wheres the 10mm, 357 mag, and 44??

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Old 09-23-2009, 02:48 PM   #43
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when i see a 124gr bullet has more of a shock wave than a 147gr bullet , i tend to get a little suspsious about the credability of the pics there''photoshop''.
This happens often. The smaller bullet is traveling faster with more energy.
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Old 09-24-2009, 03:09 PM   #44
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ive yet to see ballistics that show a lighter bullet to have more energy.
9mm 130gr jhp=1150fps@381 ft lbs energy
9mm 147gr jhp=1023fps@411 ft lbs energy
source: sierra ballistics tech hotline1-800-223-8799

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Old 09-24-2009, 03:11 PM   #45
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also faster does not mean more energy. if that was the case rhinos would be hunted with a 220 swift[4000+fps], instead of 577,600, and 700 nitro magnums[1600fpsat best].

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Old 09-24-2009, 04:05 PM   #46
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Originally Posted by splashtx556ftw View Post
also faster does not mean more energy. if that was the case rhinos would be hunted with a 220 swift[4000+fps], instead of 577,600, and 700 nitro magnums[1600fpsat best].
Muzzle energy is the result of bullet mass (grains) multiplied by velocity. Or if you want to get technical kinetic energy which is 1/2(mass*velocity)squared.

.40S&W Federal Hydra-Shok 180gr.JHP 950fps 361 ft.lbs. Big slow bullet, less energy
.40S&W Rem.Golden Saber 165gr.JHP 1150fps 485 ft.lbs. Light fast bullet, more energy
*Ballistics courtesy Chuck Hawks*
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Old 09-24-2009, 10:34 PM   #47
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Exactly Moss. Its pretty much common knowledge. E = mv^2, That is, the energy of an object equals its mass multiplied by the square of its velocity. If you were to plug a set of integers from a table for the variables into this equation for mass and velocity you would see that energy increases exponentially with velocity.

However, since every cartridge has a maximum size, the goal is to have a cartridge with a bullet of adequate mass without compromising its velocity to achieve optimum energy.

As far as 9mm vs .40cal... My feeling has always been that more power equals more effective, so bigger is better. Thus, I have always leaned toward and owned the .40. Now that there has been all this talk of the 9mm being as effective and which is better or what not; I did the only thing I could think of...

Went out and bought me a new Kel-Tec P-11 9mm! Its Just for walking the dog and stuff though, not for serious shooting or home protection.
I still lean towards .40 and .45 no matter what any ballistics say.

Should I have split that in 2 posts?

p1010011.jpg  
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Old 09-24-2009, 10:52 PM   #48
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Buy a .22, get some training and safety lessons first. You need to learn alot more before you purchase a serious caliber handgun. Dont take anyones opinions either. Just shoot and then decision will be made for you.

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Old 09-25-2009, 10:59 AM   #49
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yes thats all very true , but compare this-
2/40s&w bullets reloaded with herco powder to achieve a velocity of 1000 fps
165gr jhp=366 ft lbs
180gr jhp=399 ft lbs
page 774 sierra reloading ballistics data,edition 5, 4th printing

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Old 09-30-2009, 03:14 AM   #50
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Yeah I think we all get it...

big mass x low velocity = low energy
smaller mass x high velocity = better energy
big mass x high velocity = best result (energy)

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