.22lr ballistics tests - pics and rationale.


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P95Carry
October 4, 2003, 11:50 PM
First off ... this was done 21 years ago!! I hunted for spare prints but found none so - having still got the negatives, scanned those to generate positives ..... quality not great and original lighting differences made for some variations in results, tho I have ''tweaked'' some just quickly. I have kept them small .. only 400 pix wide and well compressed in grayscale.

It was not very scientific but done as a matter of interest. I used only modelling clay .... wet enough to be shaped by hand with effort in to a ''sausage'' ... not soggy.

With the amount I had on hand, of course wall thickness was not great and so ''containment'' of any expansion was not great. It did however prove interesting as to the effects one might expect ... and also I thought helps to prove that the humble .22lr is not entirely without need for respect!!

These examples below were all fired from full length rifle barrel at 30 feet distance ... much further and the ability to hit center would have been compromized ... as it was I bore sighted first for each shot.

After shot placement .. the clay ''sausage'' was sectioned carefully with a sharp knife ...... until one half showed clearly what had occurred ... I then added marks at 1" intervals to help with scale.

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http://www.acbsystems.com/boards/thr/shoot3/ballistic_22/eley_club_rn_30ft_02_s.jpg

This was the round I most used when doing target 22 - Eley ''Club'', std velocity ...... solid round nose ...... straight thru the 9" chunk ..... and I was surprised by the apparent expansion on entry
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http://www.acbsystems.com/boards/thr/shoot3/ballistic_22/rem_hv_hp_30ft_s.jpg

Here, a Rem HV round .... I guess around 1200 fps, and HP ......this was only a 6" long chunk of clay but, expansion is pretty dramatic. Note bullet still to be seen...... stopped much quicker thru energy transfer.
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http://www.acbsystems.com/boards/thr/shoot3/ballistic_22/rem_yeljkt_hp_30ft_s.jpg

This was a Rem ''Yellow jacket'' .. not even sure if they are still around. IIRC this was Rem's answer to CCI's Stingers .... a HP again. Pretty awesome expansion .. tho clay did thin out badly. can't see if bullet was there .... but did not penetrate right thru of course.
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http://www.acbsystems.com/boards/thr/shoot3/ballistic_22/stinger_hp_30ft_s.jpg

Now the CCI ''Stinger'' ..... similar results to ''Yellow Jacket'' ..... rapid expansion and shallow penetration. Again no bullet to be seen ..... I think maybe they fragment too much to leave an obvious piece.
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http://www.acbsystems.com/boards/thr/shoot3/ballistic_22/win_hush_hp_30ft_s.jpg

Finally here - the other extreme! Winchester ''Hush Power'' ... my rifle's staple diet back then when I hunted rabbits with a silencer .. ''phut'' was about the limit of sound!:evil: Most shots at 50 yds ... lethal every time ''Whopp!''. This pancaked bullet is just visible, as it was about to exit ... IMO VERY presentable expansion for a sub sonic.
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I found I also had some similar experiments using air pellets .. even those showed surprising effects and I will try to get to post those for interest' sake.

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Rogelio
October 5, 2003, 12:00 AM
really nice...which is the diameter of that clay suasage?

P95Carry
October 5, 2003, 12:30 AM
Rogelio ........ well, I mentioned earlier that the marks I made on the sectioned item - for longitudinal assessment, were inch so .... for each example, best to estimate using that for scale to judge diameter.

Each test ''sausage'' was different as the clay was real firm and ...... I'd roll it out until sorta ''adequate'' ... so never maybe the same twice but usually close enough! Far from scientific!

I just posted some pics from pellet tests .. similar idea. I should have said above when saying ''expansion'' ... instead probably used the term ''cavitation'', tho the hollow point bullets did themselves of course expand .. and well!

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I thought I'd posted some pellet gun pics ........ but too many images and so whole deal got lost!! I'll try and post those again when time. :(

joshlm
October 5, 2003, 10:37 AM
Great pictures. Didn't realize I 22 would do that.

Rogelio
October 7, 2003, 08:31 PM
P95CArry:

I really like your pictures....Maybe this is WAY too much to ask for but can you post the ones where you shot with air pellets?? I ask because I used to play "war" with my Gamo Delta 4.5mm air rifle, and when I got shot it really hurted me but the pellet did not expand at al. When I shot the wall (Ok, sometimes we all miss!) the pellet showed great expansion and it ended up flta as a pice of paper..(Ok, I cheated..my rifle had really powerful aftermarket springs.)

If you canb not post because you think that the pictures micgt take way too much space, I would just love if you could email them to me...

HankL
October 7, 2003, 09:04 PM
I would say a very good photo essay Chris. Enjoyed it.

P95Carry
October 7, 2003, 09:54 PM
HankL .... why thank you kindly Sir!! :)



Rogelio - Funny thing is ..... I set up a post with a loada pics on pellet stuff ... and they got lost cos too many pics per post deal. Tried a second time and similar and like a dumba$$ didn't save to clipboard.

I was thinking .... I'll try again tonight to do that .. all over again . but post in two hits which should work. When I have that done I'll try remember to come back here and post the link.

It is surprising how much pellet guns can be under rated IMO . as far anways as being potentially injurious.

Watch this space .............................

Rogelio
October 8, 2003, 12:06 AM
I will be waiting anxiously!

Thanks in advance for all the trouble that may be causing..you guys here in THR are the coolest!

P95Carry
October 8, 2003, 12:13 AM
Rogelio ...........

Go here for the pellet analysis ....

http://www.thehighroad.org/showthread.php?s=&threadid=43643

Rogelio
October 8, 2003, 11:53 PM
the pellet pics are the coolest....I already posted on that link, you are great man!

P95Carry
October 9, 2003, 12:00 AM
Thx!! :) My head has swelled a full 1/2"!!

Seriously ... I only post this sorta stuff cos seems maybe not too many done it etc ..... and one of the beauties of this site is the sharing .... of info, experiment, results good and bad.

It is IMO a real community of gun enthusiasts ... note - i do NOT use the term ''Gun nuts'' .... we are beyond that as very responsible people who happen to enjoy fine pieces of engineering and the fruits thereof ...... plus being at least also in a position, should it be needed ...... to stand half a chance to save our own a$$es!!:p

It is a pleasure and privelage to be a part of this community. ...... wish that i could meet even half of you guys!

sm
October 9, 2003, 12:19 AM
Good work on the 22lr and the pellet testing! Thanks for sharing!

If you enjoyed reading about ".22lr ballistics tests - pics and rationale." here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!