Newsgroup: it.hobby.armi
Titolo: canna glock durata - lungo in inglese

visto una domanda precedente posto il
100.000-Round 9mm Torture Test
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Written by Chuck Taylor
On four occasions since 1990, I've written articles about a continuing 
evaluation I've been conducting to ascertain the longevity of the Glock 
Model 17 9mm pistol. The first of these, appearing in the February, 1993, 
issue of Combat Handguns, contained my findings as to the weapon's 
performance and durability after 33.000 rounds fired. At this juncture, I 
stated:
  a.. "I carried it in the rain, snow, dust and mud. I carried it when the 
temperatures were over 100 degrees and when they were 40 below.
  b.. "I presented the gun more than 10.000 times from it's plastic slide 
holster, speed loaded it 2.000 times, performed over 5.000 tactical loads, 
shot it weak-handed in excess of 2,500 times and field-stripped it 250 
times.
  c.. "From the beginning, I resolved to grind it into the dirt, abuse it 
like no gun I ever had."
  d.. "Why? To find out the truth about Glocks, for once and for all...
  e.. "And I succeeded in doing just that. In a 30-month period, I fired 
33.000 rounds, all factory loads, of every imaginable type made-- and it ate 
them all, almost without a single malfunction. I say 'almost' because on the 
32,994th round, I finally had one-- a failure to feed! And this in spite of 
the fact that I cleaned the gun every 10.000 rounds whether it need it or 
not!
  f.. "100 rounds short of the 5.000th shot, both factory-provided magazines 
ceased to hold the slide open after the last shot, although they both 
continued to function normally otherwise. At round number 11.000 a second 
set did the same and was replaced by another.
  g.. "By the 500th holster presentation, the left side of the front site 
was so badly worn that a proper site picture was no longer possible. It was 
subsequently replaced with a steel version.
  h.. "By round number 16.000, I could see steel through the finish-- but it 
never did rust, although it was exposed repeatedly to rain, snow, 
perspiration and even blood.
  i.. "The trigger pull, originally 5.5 pounds, got smoother and a bit 
lighter, but it never did double or demonstrate a glitch of any kind.
  j.. "And after all this, it still shoots into 3 inches at 25 meters, not 
much different than when it was new."
Impressed, to say the least, I was still determined to see the test though 
to the point where the gun failed. So, although the piece had passed the 
33.000-round mark without significant negative results or breakage, I 
continued the test.
The months went by and the test continued. By the end of the summer, 1993, 
the gun had shot 50.000 rounds without a hitch. Among my additional 
observations published in Glock Autopistols 1995, were these:
"And now, after 50.000 rounds, nothing has really changed. It still:
  a.. "Functions reliably. In fact, not a single additional stoppage has 
occurred.
  b.. "Prints inside the 9-ring of a 25-meter pistol target, exactly as it 
did when it was new.
  c.. "Shows no additional finish wear.
  "Exhibits no bore corrosion.
"Clearly, the Glock M-17 is a heck of a pistol and, as a survival 
instrument, is well worthy of our consideration. It is well-designed, 
well-made and capable of surviving a wide variety of environmental 
conditions. It will feed the entire spectrum of bullet shapes and functions 
reliably with virtually all power levels of 9mm ammunition. In addition, it 
resists corrosion magnificently and its design causes minimal wear on 
working parts, giving it an unbelievable long service life.
"Ugly? Maybe, maybe not! It depends on what's important to you-- cosmetics, 
or function. Regardless, it's my opinion that the Glock 17 is not only a 
winner, but may well be the world's best 9mm pistol. Obviously, only time 
will tell, but in the meantime, I've got 25.000 more rounds of 9mm 
ammunition to run through it to find out."
25.000 more
And the test continued. By February, 1995, the 25.000 rounds were expended, 
bringing the total to an unbelievable 75.000! Yet, the gun was still going 
strong, showing no indications whatsoever of impending failure. I replaced 
nothing-- no springs, firing pins, connectors or any other parts. In fact, 
viewed from the broad perspective, the gun had actually outlived it's 
magazines-- six two-mag sets at that point.
Truthfully, I had run out of things to do to the gun. Short of running over 
it with a car or freezing it into a solid block of ice-- both which I 
regarded as silly, since they fail to mirror real-world conditions and 
therefore prove nothing-- I had repeatedly exposed the gun to everything. In 
the July, 1995, issue of Combat Handguns and Summer, 1995, issue of 
Glockster, I said:
  a.. "After more than 70.000 holster presentations, I can detect no 
additional finish wear from that which appeared by 20.000 presentations.
  b.. "The bore is still without corrosion or excessive wear; the piece 
still shoots inside the 9-ring of a 25-meter pistol target, using the 
offhand Weaver Stance. In fact, to determine if any deterioration of 
intrinsic accuracy had occured, I fired it from 35 meters in a Ransom Rest--  
the worst groups were 2 inches!
  c.. "As an example of its practical accuracy capability, I offer the 
following. With the test gun, I was able to perform the following:
1. "Reliably get center-hits on a 18 x 30-inch steel silhouette target at 75 
meters, knocking down five such silhouettes in under ten seconds.
2. "Take a whitetail deer with a single shot behind the shoulder at a 
laser-measured 70 meters.
3. "Successfully pass the ASAA Handgun Combat Master test with it, 
presenting it from concealed carry, shooting a score of at least 383 out of 
a possible 400."
My other observations at that time included:
  a.. "Internal parts exhibited no real wear or deterioration.
  b.. "The polycarbonate frame, though it had at one spot worn smooth from 
holster contact, appeared intact and without discernible deterioration.
  c.. "After more than 50.000 speed loads and an equal number of tactical 
loads, the magazine well was scarred somewhat but still serviceable.
  d.. "While the 56,103rd round blew a primer, the gun was undamaged. The 
resulting stoppage, a Type 3 (Feedway) was quickly cleared and the weapon 
returned to service.
  e.. "The trigger remained at 5.1 pounds, a reduction from it's original 
poundage of only 0.4 pounds. It was still smooth and had a crisp let-off.
  f.. "It was discovered that magazine service life could be dramatically 
increased by loading only 15, rather than the rated 17, rounds of 
ammunition. If a 'Plus-Two' floorplate is utilized, then-- and only then--  
should a full 17 rounds be loaded. This prevents the follower spring from 
being fully compressed, thus causing it to soften and finally 'set', as the 
expression goes.
  g.. "The Trijicon (tritium) sights installed early in the test were still 
completely serviceable."
It looked like the test was over. The pistol had survived an incredible 
75.000 rounds and was completely intact. I had my desired data-base-- the 
Glock M-17 was irrefutably a terrific pistol. In fact, I was so impressed 
that I concluded my article in Combat Handguns with this statement:
"Pretty, it ain't, especially after all it's been through. On the other 
hand, beauty is said to be in the eye of the beholder, and to me, the Glock 
is a tool, not an objet d'art. This being the case, we must view it 
differently-- function, not aesthetics, is the prime criteria. Viewed from 
this perspective, there can be no doubt that the Glock M-17 looks mighty 
good indeed."
Well, I just couldn't leave it alone. My curiosity about just how long the 
gun could survive continued to be intense. So, from my stores, I broke out 
an additional 25.000 rounds of assorted 9mm ammo and continued the test.
And now, the fall of 1995, after having fired a total of 100.000 rounds of 
virtually all kinds of ammunition...
Nothing has changed! The gun looks the same, feels the same, functions the 
same as it did before. I've done everything within reason to this gun. I've 
carried it all over the world, quite literally in every environmental 
condition known to man-- the steaming jungles of Latin America, the 
windblown deserts of the southwestern U.S., the 40-below zero tundra of 
Alaska in the winter.
And it worked-- every time. In fact, since I discovered that loading 15, 
rather than the rated 17, rounds into the magazine prevented the follower 
spring from softening, I haven't had a single malfunction. Both magazines 
used in this last 25.000 portion of my test remain strong and completely 
serviceable. And, by way of confirmation, I replaced the old springs in the 
magazines that failed during the test with new ones from Glock, and they, 
too, function perfectly.
I am especially impressed by the lack of apparent finish wear, even after 
over 100.000 holster presentations. The gun looks exactly as it did at 
20.000! I've actually worn out several holsters, finally selecting the M-D 
Labs "Thunderbolt" (which I codesigned with M-D honcho Kevin McClung) and 
matching mag carrier as the best. It's super-fast, yet secure and highly 
concealable, and being made of Kydex, it's by far the toughest rig now in 
existence.
The magazine well, although slightly scarred from in excess of 100.000 
insertions, also remains entirely functional and looks much like it did in 
the early stages of the test.
Internal parts, too, look the same. I just can't find any discernible signs 
of deterioration. The piece shoots just as accurately as it did before and 
functions flawlessly.
So, in conclusion, the Model 17 9mm continues to defy wear, tear, corrosion 
and...well, me! I've thrown the whole book of tricks at this gun and yet, as 
this is written, it continues in service. Obviously, the Model 17 is a 
terrific handgun-- so terrific that I'd quite willingly bet my life on this 
one, even after all it's been through. What better recommendation can I 
give, eh?
Copyright 1995 by Harris Publications, Inc. 

 ha scritto nel messaggio 
news:4a9ff80c$0$843$4faf...@reader5.news.tin.it...
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...Oltretutto questo mi sembra un NG ....ITALLEANO....
Grazie per la comprensione.
D8

 inglese?
Ovviamente non l'ho letto.
leggendo le ultime righe e saltando tutto il resto, si capisce che dopo 
100.000 colpi la Glock 17 va ancora bene.
Tutto qui.
Poteva anche essere un tantino pi� sintetico.......
ciao
danidane

 inglese?
mode bignami on
� un mulo indistruttibile e va pure bene
mode bignami off
credo sia dura un riassunto pi� ... riassunto :o)
saluti, davide
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