Does anyone else have one of these?

unstableryan said:
I believe this one is recorded at 20006 fps and played back at 15. It was a 124gr 9mm fmj at about 1400fps.


Same thing but slowed down to a 5 fps playback


5/8" bit spinning at 1320RPM, recorded at 22006 and played back at 30fps.



Can someone give me the quick 2 minute tip on how to embed? I've tried about times now and I haven't got it yet. Thanks, I'll add more when I figure that out.
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Place your youtube link (with the s removed from https) between (video)(/video) but replace the ( and ) with [ and ]

Should look like this

5IbOFxu.png


Tadaa!
 
unstableryan said:
I want changing the https to https. I'll try later. Getting set up for a tour. Thanks
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Wait, you do tours!? I wanna come check this out. Being that you said you are at a major Uni in the Okanagan, its pretty clear where you must work at UBC-O as its the only "major" university that way. (plus, if you google your youtube handle, its even more obvious. lol)

My good friend is an alumni there...
 
Neat-o!

That first picture of the lab reminds me of the coridoors in the old Get-Smart TV show.

The slow speed (high frame rate) vids are very cool! You have a fun job. Thanks for sharing!!!
 
Here's something: the perennial steel-core-on-steel-target discussion.

Next time business is slow, how's about you fire a dozen 7.62x54R LPS at a chunk of 10xx and capture the progression of spallation patterns as the plate gets further and further away from being flat. See if you can capture a video of a few chunks of jacket heading off at unexpected angles.

When does it shed the jacket? Also, where does the core end up? And how fast does it head there?

High speed videos of lead-core hitting smooth surfaces are plentiful and entertaining, but I haven't yet found anything showing how things develop when steel core hits steel chunk repeatedly.
 
unstableryan said:
I could pull some steel core .311 x39 bullets and fire them through the. '06 barrel, but I don't have any Russian calibre barrels.

Perhaps if you send me something in .30 calibre, I could try.
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Do you have a 303Brit barrel? We can supply that with Russian steel core ammo.

I used to work in a lab like yours. Our pictures were B&W Polaroids. We used a high speed flash to freeze bullets.

Since I know nothing about your lab or mission, I can't offer anything except the most basic of suggestions.

Temperature: Test at different ambient temperatures. Both ammo and target behave differently at +40 and -40.

Ammo: You don't need a hidden variable. By a good supply of quality reference ammo. If you use 308 or 3006, buy a few cases of Norma, all the same lot #. One less variable.
 
I only have 9mm, .44 mag and 30'06 at the moment, we will buy barrels (~$1000) as they come up in research or fee for service jobs. On an interesting note, the min book load with a 147fmj and h380 puts out velocities in excess of the max load numbers.

I've done most of my testing so far with IIIa panels, so I'm beginning to learn a little about trying to get tiny velocity standard deviations with .44 mag. It was never designed for that :)

Temperature is always exactly what we set it and humidity changes a little, but not that much. I load every round we fire and we aren't testing ammo or projectiles, we are studying different aspects of improving armour. It's all about the defensive.
 
unstableryan said:
I only have 9mm, .44 mag and 30'06 at the moment, we will buy barrels (~$1000) as they come up in research or fee for service jobs. On an interesting note, the min book load with a 147fmj and h380 puts out velocities in excess of the max load numbers.

I've done most of my testing so far with IIIa panels, so I'm beginning to learn a little about trying to get tiny velocity standard deviations with .44 mag. It was never designed for that :)

Temperature is always exactly what we set it and humidity changes a little, but not that much. I load every round we fire and we aren't testing ammo or projectiles, we are studying different aspects of improving armour. It's all about the defensive.
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This is a common situation. Each barrel is unique. Some are "faster" than others. I have "identical" barrels (made consecutively) that are 150 fps apart in velocity.

I gather you are making your own ammo for testing on targets. If you are using FMJ in 308, the Hornady bullet is better quality (more uniform) than the IVI (canpro) bullet. Bullets vary from lot to lot, so buy a bunch of the same lot #.

I suggest you load to a specific velocity and try to get a low ES and SD, so tests results are more predictive. VHT N140 would be one of the best powders for that.

Place your target as far away as possible. It takes bullet some distance before it is stable. If it hits a target while still wig-waging the results are different than the results at 100 to 300 yards with a stable bullet.
 
Ganderite said:
Place your target as far away as possible. It takes bullet some distance before it is stable. If it hits a target while still wig-waging the results are different than the results at 100 to 300 yards with a stable bullet.
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I recall reading somewhere that the US Army did some studies and found the .30-06 AP round penetrated deeper at 100 yards than near muzzle distance.
At first, that seems to defy logic, but as you note, the bullet takes a bit to settle down.
It was compared to a spinning top toy in the same article.
 
I'm sorry but OP is thinking too small. The real need here is to go head to head...and destroy the Hydraulic press channel on you tube.

...you know....for science.
 
You resurrected this almost 3 year old thread and changed the topic??? Come on, We want Steel on Steel action, in slow mo of course :)
Hope you are still enjoying your defensive ballistic testing.
 
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