Ballistics Project - Six Hollow Points

I wanted a good comparison of hollow points, fired into a small game analog of sorts. I settled on large russet potatos. they are about the size and weight of squirrels, and have a grear consistency for pellet testing.

It turns out potatoes are excellent squirrel stand-ins, and they bruise quickly to a light red hue. A potato thus seems to reveal much about a hunting pellet wound channel.

 
I believe you are way over-thinking things, and attempting to represent 'ballistics' data from a very non-scientific perspective. Any of those pellets will provide the desired terminal performance in a squirrel or other appropriate animal if the pellet is accurate in the gun being used and you are making ethical choices in shot placement.

Omitting the concept of accuracy, and the contribution to effective shot placement, in my opinion undermines the idea that these videos prove helpful information. I hunt a lot, but also plink a lot so I know it is fun to shoot things and see what happens.

Happy potato hunting!
 
I think thats great youre able to make any pellet work for you, and I hope to one day be at your level where pellet choice doesnt matter, but im not there yet. I am still learning the ropes of pellet choice, design, and target interaction, and in my case i see a big difference in result based on the pellet I used. I recently fired 39 different pellets into glycerin to see what I could learn about each one, because i care avout pellet selection.

Do you have a link or source of better data, I would be much obliged.
 
I determine the most accurate pellet for my gun, then 49 times out of 50 I make a headshot between the ear and eye on a groundhog or squirrel and it doesn't matter which pellet I use. I have used polymags in my .25 Marauder but in truth I see no terminal differences between that or a standard JSB pellet when I take a well placed shot. The other 1 time out of 50 I might take a heart\lung shot on a squirrel if the shot only allows that, but I make sure I have a clear heart/lung sight picture. In all cases I only care about 1" of penetration to scramble that brain. Squirrels I usually get a pass-thru in the head unless I'm using a sub 12 ft-lb gun, but it was that first 1/2" that mattered. In groundhogs I never get an exit wound even with 55 ft-lbs Marauder pushing it only 1" to 1 1/4" into the head. In all cases it is the shot placement stopping them, not the wound channel causing collateral damage.

The only time I see the need to evaluate if a pellet penetrates 3" of potato is if you plan to gut shoot some animal enter mass and you are looking for a wound channel to make up for poor shot placement. I think the time would be best spent determining the most accurate pellet for the distances you plan to hunt. If you luck out and find 2 or 3 pellets are equally as accurate, only then give some consideration to which might have the most terminal performance. Again, the groundhogs I shoot never know the difference between a fancy polymag and a round head pellet.

If you pick a hollowpoint based upon expected wound channel, but that pellet doesn't group well, then that pellet likely isn't hitting the animal where you want to hit it. These types of 'ballistic' experiments frequently appear in gun magazines and youtube videos, often for handgun ammo. In those cases wound channel is relevant as folks are generally shooting center mass in a hurry and need all the help they can get subduing a bad guy. But trust me, if they had the time to take a well placed shot like an ethical hunter should be doing, even ball ammo sent into that juicy brain is going to have devastating effects.
 
At .25 cal and 50+ fpe I can see how pellet doesnt matter - any pellet will make soup of whatever it hits.

Im shooting .177 at 10fpe max, so Im shooting with 1/5th the energy you're shooting with. Pellet choice is definitely a factor. I made the switch to JSB Exact and every thing I shot "walked it off," and I shot enough to confirm i was hitting at the right spot. I called it quits on JSB because it was not ethical for me to use. H&N does a much better job.

My background is physics and engineering, and so i take particular interest in things like why H&N works better for me, or what makes a Destroyer different from a Baracuda - whether at 10fpe or 50fpe, I like to know what my particular pellet is designed to do. Manufacturers have clearly caught on for the need of different designs for different applications, and Im just the type that likes to see it for myself.

But, I would argue that pellet design and interaction is a factor for me because im at 10fpe or less.
 
I guess I would expect more science and data from someone with one of those degrees. Anyway, you are better off making a well placed shot than hoping a wound channel will disrupt something vital. You can't just aim for the whole animal and hope you hit something important.

Here is a .22 from my Compatto today. That hole through his brain drops them in place every time

 
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I have more science and data from the work i posted in the "massive ballistics project" thread. I recorded the data in excel, but in the thread I opted to write about it instead of posting the spreadsheet.

In this one, I was still pretty sick of the last experiment.

I did another (yet unposted) trial of hollow points. I sandwiched a sheet of pine between two thick cuts of carboard, glued them into a sandwich, and shot through it into the glycerin. The hope was to get some better insight into how a pellet fares travelling through hide and bone, and see how much it tumbled, deformed, and how much of the target medium it carried with it.

Then hurricane harvey took a great big dump on my happy lab and i havent picked back up.
 
I know this sounds simple, but I see it as a list of priorities.
If I wanted to kill an animal with 1 shot, killing it instantly, I would consider:
1. Accuracy - You dont want an angry squirrel missing a kidney!
2. Lethality - At best 100% energy dump on target.
3. Price - You want to keep on living within the walls.

So if the first priority is fulfilled with more than one pellet design, go to the second and then to third.