9mm VS .40 S&W

[sthomper]

yes its a slower round, but in the end has more knock down power.....

does it actually knock down anything??

[SR40c]

Well, it depends... I practice with the SR9c and carry the SR40c. If I could only have one, it would be the 9mm. This is due to cost and availability of ammo. I do practice with the .40 as well, just not near as many rounds.

[marcus40]

I have always been a 45acp fan and I have concealed carried the Glock 36 since 2009 after getting my permit. In the last two years Hornady & Corbon have come a long way with the 9mm loads. Plus, at Dicks I can still buy 50 rounds of American Eagle 9mm ammo for $11.95, great for practice and to collect the brass. I have recently purchased a Glock 26 and the Wilderness Tactical 26/27 Holster - left handed. So I am transitioning from the Glock 36 45acp to the Glock 26 9mm.
Just my 2 cents worth,
Marcus

[shermr]

Most 40 S&W shooters shoot a 155 to 165 grain bullet. A 165 grain Hornady Critical Defense round has a muzzle velocity of 1175 fps and 506 ft. lbs. of muzzle energy. A 155 grain Hornady XTP has a muzzle velocity of 1180 fps and 479 ft. lbs. of energy. If you check the Remington web site you can compare a 9mm +P Golden Saber to a 40 S&W Golden Saber. The 9mm puts out 385 ft lbs of muzzle energy the 40 S&W puts out 485 ft lbs of muzzle energy.
Your 45 ACP with a Remington Golden Saber will produce 423 ft. lbs of muzzle energy or 534 ft. lbs with +P ammo.
If you want to compare heavy bullet to heavy bullet, compare the 180 grain S&W Golden Saber with the 240 grain 45 ACP Golden Saber. Your 45 has 875 fps muzzle velocity, the 40 S&W has 1015 fps. Your 45 has 391 ft lbs of muzzle energy, the 40 S&W has 412 ft lbs of muzzle energy.