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Before ballistic gelatin there was...

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stacked wooden blocks through which the path of the bullet could be traced. These were probably some of the most interesting displays Becky and I came across during our recent visit to the Springfield Armory Museum.

 

They are so neat looking (at least to me) that I thought I would share some photographs.

 

Ballisticstesting1.jpg

 

Ballisticstesting3.jpg

 

Ballisticstesting2.jpg

 

What was not immediately obvious (and I may have missed reading the placards) is how these blocks were cross-sectioned to reveal the path of the bullet. Does anyone know how this was done? If so, I am sure many of us are eager to learn.

 

Tim


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stacked wooden blocks through which the path of the bullet could be traced. These were probably some of the most interesting displays Becky and I came across during our recent visit to the Springfield Armory Museum.

 

They are so neat looking (at least to me) that I thought I would share some photographs.

 

Ballisticstesting1.jpg

 

Ballisticstesting3.jpg

 

Ballisticstesting2.jpg

 

What was not immediately obvious (and I may have missed reading the placards) is how these blocks were cross-sectioned to reveal the path of the bullet. Does anyone know how this was done? If so, I am sure many of us are eager to learn.

 

Tim

 

Probably either it was hinged, somewhat weak seam, or a big special saw.


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I thought this was a quiz; "Before ballistic gellatin there was....?" My answer was going to be "goats".

 

Tom

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My answer was going to be "pigs"?

 

Had an old freind that was an inspecting officer at aberdeen. Claims that depending on the size of the round or whatever contractor they got them from determined whether they used the "saw through" (He said it was just as you would think, giant belt saw) or the hinged type. He said the hinge type would blow open with some of the more powerful ammo..


Dirteater101

 

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Old Trooper Gunsmiths

 

"Support your local gunsmith; Shoot something till it breaks!"

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In late 60s I used to buy several US magazines as "Shooting times" "Guns&ammo" "Guns" and so on. I remember soap blocks bored through by handguns bullets to show damages with varmint loads. How many soap blocks for a 30/06 round?


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My answer was going to be "pigs"?

 

Had an old freind that was an inspecting officer at aberdeen. Claims that depending on the size of the round or whatever contractor they got them from determined whether they used the "saw through" (He said it was just as you would think, giant belt saw) or the hinged type. He said the hinge type would blow open with some of the more powerful ammo..

 

woohoo I was right. but how would they be able to avoid destroying the blade against the bullet? or was it heavy duty enough to cut the bullet in half?


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woohoo I was right. but how would they be able to avoid destroying the blade against the bullet? or was it heavy duty enough to cut the bullet in half?

 

 

Oh, he claims these blades were big demonic looking things. And that they would actually try to bisect the bullet. Claimed it would get better results and readings.

 

Oh as far as soap, the Chinese still use the soap method. To completely stop a std load 30.06 takes more than the 2 feet used for most ballistic testing....


Dirteater101

 

Head Gun junkie

Old Trooper Gunsmiths

 

"Support your local gunsmith; Shoot something till it breaks!"

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My answer was going to be "pigs"?

 

Had an old freind that was an inspecting officer at aberdeen. Claims that depending on the size of the round or whatever contractor they got them from determined whether they used the "saw through" (He said it was just as you would think, giant belt saw) or the hinged type. He said the hinge type would blow open with some of the more powerful ammo..

 

 

Did the Lagarde Thompson test use pigs and cadavers for the the bullet tests?

I do recall some mention that the "Broomhandle" Mauser in 7.65MM was the most effective in killing a pig.

Kind of hard to believe.

Cheers


Curator/Owner Ghost Squadron Military Museum,

Curator, South Alberta Light Horse Regimental Museum

Collector of;
U.S. Infantry, uniforms, and equipment, 1860 to 1950, Primarily the 41st and 88th Infantry Divisions of WW1 and WW2, United States Army Air Force, Anything B-17 Flying Fortress related, National Guard of Pennsylvania, Royal Canadian Air Force, 4th Canadian Armored division. Springfield Armory firearms, U.S. military firearms in general.



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Did the Lagarde Thompson test use pigs and cadavers for the the bullet tests?

I do recall some mention that the "Broomhandle" Mauser in 7.65MM was the most effective in killing a pig.

Kind of hard to believe.

Cheers

 

Would have to do some more research to see what "test matter" was used in that test. Pigs being closest to humans were used in a lot of ballistic testing in the early days, followed closely by goats and human cadavers. Makes you wonder what happens when you gave your body to science doesn't it?

 

Oddly enough until the advent of the .357 registered magnum in the late 30's (fuzzy on this one) the 7.63mauser/ 7.62 torkrev was the most powerful (speed and Foot Lbs.) factory pistol cartridge. It is still a rather deadly round and has no issues making holes into a level 3 police vest at 25 meters. Have heard, never personally tested(way too pricey of an item), that the round will crack the front trauma plate in the modern American soldiers I.B.A.. Scary thoughts about one of the oldest still in use pistol cartridges....


Dirteater101

 

Head Gun junkie

Old Trooper Gunsmiths

 

"Support your local gunsmith; Shoot something till it breaks!"

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Here is a quote from "Hatcher's Notebook" concering the time when the Army was considering a .276 cal bullet: "The Army made an extended study of this question, including a series of firings at live animals with .256, .276. and .30 caliber bullets. It was found that the .256 was apparently the worst killer on account of the fact that the bullet had less diameter, hence less gyrostatic stability, and would yaw badly upon impact, and make very lethal wounds".

 

Also, Gen. Hatcher states these penetration distances for the Cal. 30 M1 ammo at 100 yds:

1/4" Armor - .1"

Gravel- 7"

Brick - 4.3"

Solid Oak - 13.8"

Dry Sand - 6.5"

Moist Sand- 7.3"

Loam- 24.1"

Clay- 24.6"

Loose Earth- 19"

Also, the Ordnance Dept. (and Mythbusters) found that a .30-06 bullet has lost most of its energy after 4 feet of travel in water.

Tom

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It was found that the .256 was apparently the worst killer on account of the fact that the bullet had less diameter, hence less gyrostatic stability, and would yaw badly upon impact, and make very lethal wounds".

 

Tom

 

Perhaps I am being dense, but, I am confused by the text I bolded. How or why can the .256 round be considered the worst killer and yet make very lethal wounds?

 

Tim


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I think by "worst" he meant "most effective" due to the fact that the bullets would go sideways through the target rather than straight through. The next sentence in the paragraph is: "The .276 was found to be about as effective, and as it had certain advantages over the .256, its adoption was decided on for the new semi-automatic rifle that it was hoped would soon be adopted."

 

Tom

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