Oris Wrote:
>ddt4free, ...point to any sentence
>in my post which is not accurate from the
>physics point of view.
I think what ddt4free was refering to were these:
>relative movements of slide, barrel, bullet
>and spent case are happening INSIDE the
>physical system of a gun...
This is clearly not true except in the case of fixed mount weapons. If the mount is not fixed, or has a variable rate of movement, then it, too, is part of the physical system of the gun. The grip a handgun opperator maintains is ALWAYS part of the "physical system" of the gun.
>relative movements of gun parts can not be avoided.
Also not true. There are infinite variations between FIXED and "suspended in space" and the opperator has control over all that variation. In EVERY instance of variation there is a different response in energy transfer inside the system of the gun, hence "relative movement" is NEVER the same.
>Whatever the hold is, it is a hold, period.
Also not true. Again, there is an undefinable number of variations in the "fixedness" of the "mount" (your grip). A person could be holding the weapon so loosely that is goes flying out of their hand when shot! I have actually seen this happen by a recruit that was afraid of his 1911.
>Reliable function of the gun depends
>upon...[several very accurate factors deleted]...
>It does not, technically speaking, depends
>on proper grip/shooting techniques...
Again, incorrect. Becasue a recoil opperated handgun relies on the solidity of its "mount" in order to function, proper grip and shooting techniques are imminently involved in a weapon's relability. How well would a Rheinmetal 120mm smoothbore cannon function if it was not attached to a 67ton M1A1? Same principal, smaller bore.
Oris, I really do agree with your gut-level premis that it is a cop-out by the firearm manufacturers to think that "limp-wristing" is an acceptable excuse for feed failures. Likewise I dont think that ANYONE should have to put up with a firearm that they can "limp-wrist". There are many slightly differnt springs out there that the manufacturer can use in place of the one on your weapon. Even if it meant that my autopistol had a service life of 20,000rnds instead of 25,000rnds I would prefer to have it made so that I could not induce it to failure.
There is no excuse for not having a gun serviced that someone can "limp-wrist" into malfunction.
All of that said, however, it does not invalidate the fact that this phenomenon exists, and, in fact, is quite well understood from a physics point of view. It happens, and it sometimes happens a lot.
I personally try to "limp-wrist" every gun that I buy for self-defense and I would send it back in a heart-beat if I could induce it to failure. But I am not everyone, and many people deal with grip related problems all the time.
Hope this helps!
Again, IMHO, FWIW, YMMV and all the rest!
J.T.