That would be a lot of fun but I don't know that you can get an adequate sample size to say anything definitive.

Hold my beer.

!

That's what I like to hear.

Jeff, did the expert say which bullets stop rotation and which ones continue to rotate after impact? Is there a type of bullet that is more apt to stop than another or is is just dependent on what it hits or more of a mystery? Just curious, don't know if the conversation went that far


Some recovered mushroomed bullets show a definite rotation force at work on the bullet that sometimes matches the rifling on the shank and others IIRC show a bit more at the tips, Barnes copper bullets the tips of the petals are often curved more than the rifling marks indicating to my thinking those bullets were still rotating. Then of course there is more forces from that rotation the further from center the petals get. Just principal of dynamics old style sling shot as an example the rock sent out is moving a lot faster than the string at the location It meets the hand. Better example perhaps an ice skater arms in spins fast as the arms go out the spin speed slows.

Following the skater example the faster the bullet expands outward the faster the spin force would slow down. It is not uncommon to find bullets like the Swift Sirocco that holds together for most times 90 percent weight retention and large diameter for caliber ending form to ne rear of the bullet going forward in jell and when it stays in the body of game heal of bullet furthest from the entry point. I have read about that several times and seen it in critters at some point the bullet lost stability and turned going through gel or soft tissue and a parachute type effect turned the bullet with the heel of the bullet being the pointed end at the time of instability and the parachute effect of the expanded front end catching and slowing it down from a tumble.

Looking at some high speed video of bullets the ones with no penetration that fragment on steel look like they are rotating with the rifling marks until they get very short where they look like are loosing rotational forces. the bullets that punch through steel are still rotating.

I think it would be interesting to have the highspeed camera on a gel block and shoot bullets out of one box for consistency into it at the same velocity from different twist rates and see if they flip around at the same depth of penetration.

Of course I could be totally wrong on what is in my head about what happens, but in reality as long as the bullet efficiently kills the critter I am happy.

No, I asked if there is any explanation or pattern, and not that they have figured out yet, but it was just a short note both ways.

What is obvious is that is way beyond my high school and college physics, but that was many years ago.

My young nephews show how they do math and it is completely bizarre to my eye.

Might be useful to start a thread on combinations of bullets with shot placements that are known to work well, and ones to avoid.

That could be a useful thread.

Never took high school physics but in college took physics, statics, and dynamics but that has been years ago. Agree on the math of today it sure is different but still comes out to the right answer if done our old way or the new way if done right. I should have taken one more advanced math class when I was in college and would have had a minor in math, that wore out lots of pencils, paper and hours as it was. Adding a bunch of numbers at work one night and a younger lady doing the same, she got out a calculator I just did a list about twice as long in my head and was finished ready to go before she got half way through her list. She just once again said I am not human and not from this planet. Heck according to her I might be from that little planet that lost its ranking.

Put any bullet you want through the braim stem. It'll work.

No, brutha...that would mean that yours truly is correct.

You know you can chootem more than once. Just an idea.

I hope I'm linking this video properly.

I could be misinterpreting what I see and jumping to the wrong conclusion, but this clip sure does suggest that the bullet does retain some spin as it penetrates. It may not be all that simple though, meaning "it depends."

Gave you the prize up above.


I think he means what happens after impact is inconsistent and unpredictable.

What, you went and made me another year older?? Well thanks a lot.



Just kiddin Jeff.

Hit the wrong smilie the first time. Fixed it.

You shoulda just left it...it was funny!

That's exactly what I meant.

Hogs are such good bullet test media

We can round you up a 175-200lb pig or 3 when you want to test this hypothesis. Just depends on how the night before goes

Okay then...I guess what I was really wondering about is why you hafta trap em first.

Traps are on duty 24 hours a day, so that increases likelihood of obtaining ballistic media.

I have not seen my local sounder in months. They will be back, I have no doubt.

Pigs are very smart. They probably figured out your range was a rough neighborhood.

One day in May, one of those prefect weather days, 72°F, 5 mph south breeze, not a cloud in the sky. I was working in the shop, and I heard them. I worked my way toward the sounds. They had the audacity to cross my range, at noon, on a clear day. Toting an LR308 I decided to creep the 400 yards seperating us, so I could get more shots off. They crossed onto my neighbors place, and by the time I got to their crossing they had vanished.

There was a reckoning the next day, though. I was teaching, and in our last hour, we heard them down at the end of the range. My customer left and I went to repaint the targets on the four wheeler. Same LR308, and this time I discovered them 200 yards away. I walked an additional 50, rested the rifle on the second barb wire from the top, and prayed for reliable cycling. The survivors have not been back. So yeah, they may view it as a rough neighborhood.

I have herd you have had problems with ARs in the past and was a little surprised when you got one
Had a sounder hitting one feeder t a lease that didn't learn the first time, one of the other lease embers shot one out of it one weekend. I got the rest the next weekend. 9 at the start 0 at the end. Got those 8 with a bolt action 22-243 mostly with 75gr Siroccos not loaded that hot at 3300 fps. Started with the one that was the furtherest out and kept shooting that way until the last ones from the stand were 10 yerds. reloaded agsin and got the last 2 as they ran from the brush at about 30 yards. Gotta love the young pigs that never get a chance to learn. Biggest one of those was about 100 lbs

AR problems and JG in the same sentence He has a gift as the church people call it

One of the Police Sniper teams that train out there, had some GAP-10's out one day. One of those malfunctioned, in my presence. I didn't even touch it, and it failed to eject a few times.