Home Forums Hunting & Shooting Handguns Glock 21 45 Super versus Glock 20 10mm

10 mm heel nipping 200's LSWC in the shorty 40
200gr TMJ 7.9 gr VV N105 1,116 fps 1.134"

plus several others at 950ish, of course as proven by Clark the 40SW can't kill anything.

I keep reading this insanity on the FBI's choice of the 9mm where they say that surgeons working on gunshots can tell no real difference in what pistol round Boo got shot with, so you have to wonder why all the lyin is going on cause everybody knows how powerful some pistols are

Just think about "can tell no difference in pistol caliber wounding" let that sink in...can't be true.

on the other hand heavier slow bullets do penetrate well if you need to shoot through stuff.

45 Colt Factory LRN 250 950 21.0 penetration of paper, cool Linebaugh penetration seminar stuff.

There's no comparison between the two, except in the bullet diameter. Common sense would dictate that the 10mm has the larger case capacity and that it would handle heavier bullets better than the smaller case 40 S&W.

Underwood ammo provides a great example of this. The 10mm really shows how much more powerful it is than the 40 S&W, especially using heavier bullets. 250 FPS and 250 FPE with 200 gr bullets is a major upgrade in power. The 10mm with a 220 gr load is faster and more potent than the 200 gr 40 S&W load by 200 FPS and 259 FPE.

https://www.underwoodammo.com/40-s-w-200-grain-hard-cast-flat-nose/

Technical Information

Caliber: 40 S&W
Bullet Weight: 200 Grains
Bullet Style: Hardcast Flat Nose 21 BHN
Case Type: Brass
.
Ballistics Information:

Muzzle Velocity: 1000 fps
Muzzle Energy: 444 ft. lbs.

https://www.underwoodammo.com/10mm-auto-200-grain-hard-cast-flat-nose/

Technical Information

Caliber: 10mm Auto
Bullet Weight: 200 Grains
Bullet Style: Hardcast Flat Nose 21 BHN
Case Type: Brass

Ballistics Information:

Muzzle Velocity: 1250 fps
Muzzle Energy: 694 ft. lbs.


https://www.underwoodammo.com/10mm-auto-220-grain-hard-cast-flat-nose/

Technical Information

Caliber: 10mm Auto
Bullet Weight: 220 Grains
Bullet Style: Hardcast Flat Nose 21 BHN
Case Type: Brass

Ballistics Information:

Muzzle Velocity: 1200 fps
Muzzle Energy: 703 ft. lbs.

still its nippin on the heels..and in a much smaller package...or get a 45.

I would not call 200 FPS nipping on the heels. 200 FPS more for the same bullet is a size able difference.

you wouldn't...

but you shoot the 45 super.

edited to add...the .40Smith and Wesson is short and weak, personally after much study a 44 magnum is where I landed in the discussion, but am interested in a model 23 for hiking, black bears and other sub 250 pound animals only.

I use both the 10mm and the 45 Super.
The 40 Short and Weak is nowhere near the equal of either of the cartridges.