FMJ for Self Defense.

G

Glock19Fan

New member
If you had to use FMJ and was forced to pick between 9mm and .45, what would you choose?

Weapons and ammo- Glock 19 and full sized 1911. Ammo was WWB, and the direction of travel was from the right.

The .45ACP is on top and 9mm is on bottom.

jua58j.jpg


I use Gold Dots, I just thought it would be interesting to show this test.
 
.45 ACP - no contest. I would prefer a Gold Dot hollowpoint or a heavy (250 gr.) hard cast slug if it will feed through the gun (the Gold Dot "should" feed through your Glock). 9mm will work fine if you can place the shot where it needs to go. A .45 just gives you a little more slop factor. Just keep in mind that if you're going to use a bullet like a FMJ that tends to penetrate completely through a human body to watch your field of fire and make sure of the background beyond the target.
 
FMJ ball ammo only, I have to go with the caliber that leaves the biggest holes. I believe the phrase is "your 9mm may expand, but my 45 will never shrink".
 
The 45ACP is king FMJ or JHP

:Dso you have tested that FMJ will overpenetrate in both cases.

that is good data...the comparison between the 9mm and 45ACP is not apples to apples....

but the bigger hole is from the 45ACP...that...is going to hurt!
 
I'd choose 9mm because neither caliber in FMJ is going to be great in performance and at the end of the day, I'd rather have 17 rounds of onboard ammo, than have each of my 7 holes be 0.10" bigger in diameter.
 
Looking at the gel, there doesn't seem much difference in effect between 9mm and .45 acp in fmj. I'd go with the 9mm for faster follow up shots and higher capacity.
 
I'd choose 9mm because neither caliber in FMJ is going to be great in performance and at the end of the day, I'd rather have 17 rounds of onboard ammo, than have each of my 7 holes be 0.10" bigger in diameter.
Click to expand...

I agree.
 
I'd choose 9mm because neither caliber in FMJ is going to be great in performance and at the end of the day, I'd rather have 17 rounds of onboard ammo, than have each of my 7 holes be 0.10" bigger in diameter
Click to expand...
My 45 holds 15 rounds. That makes for 1.5 more inches of drainage in the target:cool:
 
I would assume that becuase of the larger displacement, and the fact that the block reacted similar with both shots, that a conclusion could be drawn?

The absense of liquid is irrelevant.
 
I would be confident in saying that a yawing 9mm bullet, as well as a 9mm bullet penetrating base first (basically a wadcutter) would do more damage than a low velocity, non expanding, non yawing .45 caliber bullet.

Especially seeing this test first hand.
 
Having used both I confess I'm not sure. A plus to the higher velocity and greater penetration of the 9MM using FMJ is it's more effective against thick winter clothing. The 45ACP does have a better record for one shot stops.
 
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