JR47
Member
Ghost Walker, thank you, but you'll note that there was zero scientific proof given for the 12" spec.
So, they essentially agreed on the 8" minimum, but then added an arbitrary 50% for intermediate limbs and fat people? Where does that come from in supportable data?
That alone makes the FBI protocols suspect from a scientific view. They picked M&S's data apart (not Sanows alone) for lacking requisite data points, even though the books all preface the conditions that the data was used and based upon. This is, literally, the pot calling the kettle black.
While denigrating the lack of science in the M&S data, the FBI protocols are arbitrary, not scientific. The science all takes place to see that the arbitrary data points are supported. It's also interesting that there has been no follow-on research done to validate the actual data points chosen, after nearly 20 years.
Ever wonder why agencies like the old Border Patrol, and the Secret Service, never adhered to the FBI protocols, if they were so scientifically sound?
Face it, the FBI made arbitrary decisions as to performance parameters, not scientific decisions. They then announced them, and proceeded to "grade" ammunition based on those arbitrary standards. As their, and many other Police agencies ammunition requirements were based on these arbitrary standards, the manufacturers had no choice but to make ammunition that passed the specific tests in order to sell to them.
It's an interesting saga, especially with all of the jargon used to defend the standards, not what caused the standards. GIGO is right.
The probability of needing this extra penetration is a judgment call, but most sensible people believe it is a significant factor and certainly much more important than a very conjectural 1% in theoretical stopping power under ideal conditions. This is the reason the FBI specified the 12 inch minimum penetration even though they (and everybody else in the professional wound ballistics community) are well aware that an 8 inch penetration is usually adequate. Sanow (and others) may make a different judgment on this, but to describe the FBI position as "totally bogus" is both ridiculous and irresponsible.
So, they essentially agreed on the 8" minimum, but then added an arbitrary 50% for intermediate limbs and fat people? Where does that come from in supportable data?
That alone makes the FBI protocols suspect from a scientific view. They picked M&S's data apart (not Sanows alone) for lacking requisite data points, even though the books all preface the conditions that the data was used and based upon. This is, literally, the pot calling the kettle black.
While denigrating the lack of science in the M&S data, the FBI protocols are arbitrary, not scientific. The science all takes place to see that the arbitrary data points are supported. It's also interesting that there has been no follow-on research done to validate the actual data points chosen, after nearly 20 years.
Ever wonder why agencies like the old Border Patrol, and the Secret Service, never adhered to the FBI protocols, if they were so scientifically sound?
Face it, the FBI made arbitrary decisions as to performance parameters, not scientific decisions. They then announced them, and proceeded to "grade" ammunition based on those arbitrary standards. As their, and many other Police agencies ammunition requirements were based on these arbitrary standards, the manufacturers had no choice but to make ammunition that passed the specific tests in order to sell to them.
It's an interesting saga, especially with all of the jargon used to defend the standards, not what caused the standards. GIGO is right.