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Ballistics Testing Group 2008 Publications We appreciate the thoughtful discussions and valuable references provided by forum members over the years, and we are mindful of the regular requests by forum members to keep them appraised of our ongoing work. We’ve been busy in 2008, as attested...

One key issue in terminal ballistics is whether all projectile effects are local or bullets can create remote effects in tissue. The main published author of the local view is Martin Fackler. In arguing against remote pressure wave effects by citing his own unpublished data and shifting the...

Dr. Amy Courtney assisted me in re-writing the Hydrostatic Shock article on Wikipedia. We believe it is now much improved, with a more complete discussion and more complete reference list. See: http://en.wikipedia.org/wiki/Hydrostatic_shock Thanks, Michael Courtney

My wife brought this story to my attention: http://media.www.hillsdalecollegian.com/media/storage/paper1270/news/2008/02/21/News/Colleges.72Acre.Shooting.Range.Opens.This.Fall.Student.Weapon.Storage.Locker.In-3225746.shtml Hillsdale is a truly great American institution. It's nice to...

In several threads I have read ignorant statements asserting that it was the intention of our founding fathers to only restrict the federal government with the second amendment. The authors of our Bill of Rights knew well how to write amendments that only limited certain branches of...

There are a number of historical and scientific parallels regarding neurological effects of blast and ballistic pressure waves. Neurological effects of blast pressure waves were given the name "shell shock" in WWI, and observations of cognitive impairments were widespread. However, the lack...

Here are two abstracts and links to recent papers. My esteemed co-author, Dr. Amy Courtney, took the lead on writing and guiding the first paper through the peer-review process. Links between traumatic brain injury and ballistic pressure waves originating in the thoracic cavity and...

We just completed an update of our web site reflecting the status of our publications, as well as a change of address and institutional affiliations. See: www.ballisticstestinggroup.org If you ever are interested in the status of our work, this would be the place to check first. Of course...

My wife and I just moved to Orange County New York (Ft. Montgomery). We're in the process of applying for handgun licenses, but the relevant office requires that we pay the $99 before giving us the application, which must be returned with 60 days. Since New York is MAY ISSUE rather than...

We've never been eager to move to New York, but my wife was offered a very attractive faculty position, so we're looking at houses in Cornwall and Highland Falls. While not as hostile toward guns as NYC, there are a few hoops to jump through. Any leads or advice on staying on the right side of...

Contributions to the scientific literature Here are some abstracts of recently published papers along with links to the full text. Review of criticisms of ballistic pressure wave experiments, the Strasbourg goat tests, and the Marshall and Sanow data Authors: Michael Courtney, Amy...

What happened to the IWBA? They appear to have disbanded in 2001 or so. Michael Courtney

During the era of manned space flight, the odds of an astronaut dying on a mission are roughly 2%. Since 9/11/2001, the odds of a US soldier dying in combat are less than 1%. Why aren't those who are against the war also lobbying to end NASA and manned space missions? If the "senseless...

Please list your a few favorite gun magazines in order of your assessment of their objectivity in reporting. Here's mine: The Varmint Hunter The American Rifleman Guns and Ammo Thanks, Michael Courtney

I've read from a number of sources that the duration of the temporary cavity is on the order of 5-10 milliseconds. Some sources suggest a shorter duration. Presumably, this has been measured in ballistic gelatin, but I have not found a source describing an experimental method (there is an...

I recently came across this bit the term "Sniper Rifle" and thought it was worth some discussion.

In the middle of giving all my firearms their annual cleaning when I ran low on Hoppes #9 Powder Solvent and Hoppes #9 Copper Solvent. When I hit the sporting goods store to buy more, the Hoppes Elite equivalent products caught my eye. They claim to work more quickly, have no petroleum...

Earlier posts described the physics of the ballistic pressure wave and provided a definition of stopping power that can be used to investigate possible pressure wave contributions to incapacitation. It is generally agreed upon that bullet design plays at least as important a role in bullet...

Effects of Barrel Friction on Muzzle Energy of Handgun Bullets In a recent experimental study, we developed a method for measuring friction between the bullet and the barrel with a dynamic technique that determines the work done by friction as the bullet traverses the barrel. At relatively...

Physics of the Ballistic Pressure Wave One might wonder why a given 135 grain .40 caliber JHP bullet at 1350 FPS creates a larger ballistic pressure wave many other JHP bullets in the .40 S&W cartridge. The origin of the pressure wave is Newton’s third law. The bullet slows down in tissue...