9mm vs 40cal
- Thread starter Shooter79
- Start date
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And here I spent years learning to hit my threat instead of a wall or anything else. Spray and pray in a bullet resistant environment? Sign me up!
...soooo, that's what I'm doing wrong....... The Rabbi said, "you don't understand. I draw the circles AFTER shooting.
MikeTF
Ultimate Member
I've got an idea. You could document your actual experience with pictures and/or video. Maybe you could set up a test box for holding materials and fire different cartridges at different media. Perhaps you could call it 'The Box of Truth', or something catchy.
It turns out someone did just that. His very first experiment was with drywall sheets and various rounds. Here's what he found:
He then decided to replace the drywall sheets with 3/4 inch ponderosa pine.
His lessons learned at the end are always amusing (it's been years since I've visited his site).
The Box O’ Truth #1 – The Original Box O’ Truth
smokey
2A TEACHER
- Jan 31, 2008
- 31,534
Fmj...yeah.
Heres a cinderblock test using basically the worst case for overpenetration, fmj and 855.
MikeTF
Ultimate Member
You make a great point! He got a lot of 'fan mail' that asked him why he didn't use insulation between the sheet rock. So he did this 'The Box O’ Truth #12 – Insulated Walls' and used 9mm 40 and 45 JHP pistol rounds, and FMJ XM-193 5.56, and 12 gauge. He found that everything went through all of the walls except for the 5.56, which ended up deviating greatly from their original flight path.
Since he could not track the path of the 5.56 in this experiment, he made bigger walls and he tested different types of 5.56 ammo. His conclusion:
The Box O’ Truth #14 – Rifles, Shotguns, and Walls
smokey
2A TEACHER
- Jan 31, 2008
- 31,534
...... The Rabbi said, "you don't understand. I draw the circles AFTER shooting.
That and know when to quit. This is my first shot of the day @ 100 yards with my AR to verify that my scope was still sighted in...that's when you just unload and call it a day.
Attachments
Blaster wants to know if that target was moving or stationary? If it was moving, he wants to know which way and how fast?
He told me to ask since he doesn't want to risk being banned again.
smokey
2A TEACHER
- Jan 31, 2008
- 31,534
smokey
2A TEACHER
- Jan 31, 2008
- 31,534
It was stationary, but I was firing from an inverted 737 door with nightvision one-handed while restraining someone that was complaining about the drink size.
MikeTF
Ultimate Member
Good stuff! Perhaps others will offer something of substance?
Blaster approves. (I think...)
Only if shooting through the fuselage. I bet our ballistiscientist hasn't done that test.
I get that. I do. I tested it under the best conditions I knew how. Using the model of Box 'o' Truth and a few other YouTubers for ideas on how to minimize variables.
The ammo was high quality, the targets were stable, the wind and humidity was low, temperature probably in the high 60's.
I don't have a chrono, and I had no motivation to post it or share it at the time, and YouTube is flooded with caliber V caliber barrier tests. The test itself was enough work on its own, not to mention cost a few shekels.
I'm not mad at anyone. I'm a smart man with a comprehensive understanding of the scientific method, it was as controlled as it was going to get with the materials I had available.
Oh well, I'm over it. I made my choice for HD and I'm comfortable and proficient with it. The goal is indeed to hit the target you're aiming for. I just can't have an injured family member or bystander on my conscience without trying to minimize risk while maintaining deadly accuracy first. It's all worst case scenario.
Sent from my SAMSUNG-SM-G870A using Tapatalk
TheGunnyRet
Ultimate Member
Wow this was a Ping Pong Match from Hell...
All I know is all the "Tests" are controlled. Your "Battle Space" is very limited to maybe 5 to 15 feet tops in a Home environment...unless you live in a Huge House...
SO I look at it as having plenty of Rounds that are JHP/LE approved whether 380 to .50AE, clear fields of Fire...and defensive positioning points...and common sense...using Rifle Rounds in a Home sort of imo is a waste...your velocities are high and 556 wasn't developed for that scenario...and it is a small round to boot...
That's why 300 Blk evolved. A larger Round transfers more energy ie stopping power. That's why 762x39 is an effective urban round.
Plus it all goes by what is comfortable for you...then all else usually goes out the window...A plan is good but nothing you plan ever happens...JM2C
All I know is all the "Tests" are controlled. Your "Battle Space" is very limited to maybe 5 to 15 feet tops in a Home environment...unless you live in a Huge House...
SO I look at it as having plenty of Rounds that are JHP/LE approved whether 380 to .50AE, clear fields of Fire...and defensive positioning points...and common sense...using Rifle Rounds in a Home sort of imo is a waste...your velocities are high and 556 wasn't developed for that scenario...and it is a small round to boot...
That's why 300 Blk evolved. A larger Round transfers more energy ie stopping power. That's why 762x39 is an effective urban round.
Plus it all goes by what is comfortable for you...then all else usually goes out the window...A plan is good but nothing you plan ever happens...JM2C
Lol. I had a range day like that two weeks ago with my .243. Could cover the first mag at 100 yards with a quarter. And that's the point when I should have gone home.
Alan3413
Ultimate Member
- Mar 4, 2013
- 17,176
Had a range day that actually ended like that.
Very first shot took out the rear washer holding one chain on the steel target. At 100 yards. The metal part was maybe 1/4" wide. The chain was hanging loose but untouched.
Nothing else to do but pack up and go home.
Very first shot took out the rear washer holding one chain on the steel target. At 100 yards. The metal part was maybe 1/4" wide. The chain was hanging loose but untouched.
Nothing else to do but pack up and go home.
Why not. Or at least just take down the target and keep it; one in probably 10,000 shot.
We should all be so lucky now and then.
We should all be so lucky now and then.
