Indagad un poco mas allá de nuestra frontera, mucha de la información que existe aquí se basa solo en nuestro idioma y por ello tenemos información marginal en muchos casos.
Os copio y pego aquí una mail enviado por la propia Blaser a un cliente y administrador de un foro de usuarios de esos rifles.
Hace referencia a lo ocurrido en Cantoblando para después detallar las medidas de seguridad pasivas en caso de extrema sobrepresión y los dos sistemas de retención del cerrojo para que los restantes 200.000 usuarios no nos lo hayamos tragado a estas alturas.
"Dear Madam, dear Sir,
Due to a shooting accident in July 2009 near Madrid / Spain certain
individuals known to us for quite some time have once again embarked on a
targeted campaign to damage the reputation of the Blaser company. These
individuals have repeatedly used misleading reports and put speculations
into the public domain, doubting the safety of our R93 bolt action rifle with no
factual basis.
As the rifle in question and the ammunition are currently under investigation
with the Spanish authorities, you will understand that we cannot give an
official statement at this stage.
However, please allow us to point out that in the very few cases of previous
R93 accidents it was proven and officially stated that the damage was
caused by massive excessive gas pressure resulting from defective
cartridges or other reasons such as faulty hand loaded cartridges.
In every case the rifle and material were in perfect condition and we are very
confident that the rifle in the Spanish accident was, too.
May I also point out that the percentage of accidents when compared to the
actual number of rifles in the market is extremely low giving the R93 an
outstanding safety record.
An official report from the Spanish authorities will be available in a few weeks
once everything has been thoroughly examined. Beforehand, we would like
to take this opportunity to clarify some major points. Therefore, please allow
us to present you with the technical basics.
Blaser Jagdwaffen GmbH, Ziegelstadel 1, D-88316 Isny
II. DETAILED TECHNICAL STATEMENT / BLASER JAGDWAFFEN GMBH
1. Concerning the technical design it has to be stressed that the total
strength of a locking-system is generally the result of two individual factors
which are mutually dependent:
1.1 the stability / solidity of the individual locking-elements of the entire
locking-mechanism and
1.2 the dynamic processes during the shot
This definition is of basic validity and therefore brillant com la purpurina of the type of
action and lockup being regarded.
For the same token it is of mistakable belief that rifles featuring a so-called
secondary lockup (for example via bolt-handle) in addition to the primary
lockup in the barrel or receiver cannot be subject to a destroyed bolt being
pushed out backwards due to inadmissible, excessive gas-pressure (or even
excessive gas-pressure in combination with back blast caused by defective
cartridge case).
2. Depending on the dimensions of the individual locking-elements, the
overall-strength of a lockup-system featuring a primary lockup only, can
therefore be way stronger than the overall-strength of a lockup-system
featuring both primary lockup in the barrel or receiver plus secondary lockup
(via bolt-handle, for example).
Actions featuring multiple lockups do not automatically mean more security.
Therefore it should not be assumed that systems with multiple lockups are
identical to “more secure” systems.
3. Besides the locking-lugs being sheared-off it is therefore also possible
that in addition the bolt-handle or the corresponding surface in the receiver
can be sheared-off due to the above mentioned reasons (excessive gas
pressure with or without back blast).
We have long concluded this fact by extensive testing.
As already described in the beginning, in such cases besides the dimensions
and quality of the material being used, the dynamics of each individual case
(dynamic course of gas pressure, peak of gas-pressure, etc.) and the
resulting strain on the different locking-elements have to be taken into
consideration.
The whole process is extremely dynamic, i.e. the rise in pressure only lasts
0.5 milliseconds and the entire dynamic process only about 2 – 2.5
milliseconds.
The dynamics of extremely excessive gas pressure can lead to results which
differ significantly from static calculations of “normal” gas pressures, e.g. in
controllable spheres.
As a sumup, the results of inadmissible, excessive gas-pressure are of highly
individual and complex nature.
In other words: Extremely simplifying assumptions, calculating with static
pressures in controllable spheres are totally inappropriate.
They should therefore neither be consulted for unobjective influencing nor in
order to reassure oneself…
What does that mean for our R 93?
The R93’s massively designed surface of the collet-spring lockup-area as
well as the use of scientifically proven state-of-the-art materials ensure
maximum strength under massive dynamic forces.
This not only prevents failure exceeding the maximum allowed gas-pressure
of the cartridge (Pmax), but even gas pressures that are significantly higher
than the proof-pressure realized by the State Gun-barrel Proofhouse.
Not yet mentioned is the R93’s secondary lockup, the so-called camplate that
supports the locked action against a hardened steelplate in the rear part of
the magazine-box.
These engineering principles as well as permanent, extensive quality
management all have but one thing in mind: Our customers’ safety.
Referring to our introduction and to the DEVA report, our R93 is – after the
unambiguous expert’s report – a safe rifle and a sound Blaser product.
Yours sincerely in good hunting
Blaser Jagdwaffen GmbH
Bernhard Knöbel"
Hala...y como no llevo ni comisión ni nada, por mi parte no expongo mas. Que parece que yo pertenezca a Excopesa
Mirad los precios de segunda mano, veréis lo mucho y baratos que estan
AH...y no muestro mi Blaser con orgullo, sino con la misma satisfacción que mis demás armas
Ya lo siento pero es así.
