A highly scientific test

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Boss had a box full of these stupid little Stanley Cup coasters hanging around for too long and told me to get rid of them. They are basically what you get if you saw a hockey puck into three slices, and since I am always on the lookout for fresh targets for plinking, I tapped seven of them together and found them to be quite tough reaction targets for the .22. It got me thinking about trying penetration tests with what ammo I had to hand.

So, I lined up the targets at 25 metres, loaded five different rounds into the trusty Marlin 7000, and tried some science.






First up, standard Winchester 555s.













Penetrated two coasters and sat there burning the third one. Nice mushrooming. Sorry for the potato-quality, didn't have the right setting on.


Next, Dynapoints- my current go-to ammo.











Also two coasters penned, basically the same effect as the 555s. Cleaner mushrooming effect, though.


Mini-Mags! Surely they went right through, right?







Nope.





Penned two and that's it. Noticeable difference though was that the mushroom effect was very pronounced, the edge of it curling back well below what would have been the base of the bullet.


Velocitors up next. You'll note I hadn't paid attention to the sudden increase in velocity these things have over the others and shot quite high.







Penetrated two and nearly all the way through the third! This bullet was -moving-.





One very squashed bullet.


Lastly, the CCI Segmented, or as they are known now- Quik-Shoks.





I'm not going to lie- I was hoping for violent detonation of this thing on impact.



You can see where the three pieces would have separated in a softer target, but here it was just another bullet. Only went through two coasters, despite being the same weight and velocity as the Velocitors.



And that's that. I had been hoping for some more interesting results from this, but all I really discovered was that these little homemade reactive targets do a good job of holding onto the lead.

Next time, I'll see what a .22 Kilbourn-Hornet, a .44 Magnum, and a Mosin-Nagant will do to them!

 
Well done! A bit surprised that the velocitors penetrated much more than the others. Figured it would be closer to the rest.
 
Warmed up my potato to try some macro shots of the lead.

Top row: Win 555, Dynapoint
Bottom row: Velocitor, Minimag, Segmented













These all hit the same type of rubber at the same distance, and mostly penetrated the same amount of said rubber. The deformation of each different bullet is interesting.

I also have to say this is pretty nice macro imaging for a camera I paid $5 for at a pawn shop six years ago.
 
Now I am feeling all research-like... mostly. I broke out the callipers, in any case. Measured the expanded lead at the widest point.

Winchester 555
Original Diameter (OD): .222 inches
Expanded Diameter (ED): .492 inches




Winchester Dynapoint
OD: .224
ED: .493




CCI Velocitor
OD: .223
ED: .488




CCI Minimag
OD: .223
ED: .461




CCI Segmented (Quik-Shok)
OD: .223
ED: .481




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So, these all performed roughly the same and achieved roughly the same amount of expansion by the endpoint save for the MiniMag, which got quite a bit narrower but ended up being quite a bit longer, and the Velocitor, which penetrated deeper than the other four.

The neatest expansion by far is the Dynapoint, which has the tiniest excuse for a hollow point of the lot yet achieved the widest expansion of them all.
 
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