Posted by John MacLean on January 31, 2002 at 18:40:24:
I've recently
started out in air pistol and have acquired a Steyr LP5 which I am training
with. I'm using it mostly to help me with preparing for centrefire pistol and
I've purchased the heavy trigger unit as well as the standard one. The trigger
on the LP5 seems to have lots of adjustments but I'm not clear on how to do two
adjustments or even if they are possible. Firstly, can you adjust the balance
between the first and second stages? Secondly, the second stage on both triggers
is very "creepy". I'm used to a crisper let off. Can this be adjusted?
Thanks,
John MacLean
Posted by Mark on February 01, 2002 at 00:10:17:
John
Check out the
link below. This is info provided by Scott and Warren at Pilkguns (called tenp
files) and should explain the adjustment you need.
Posted by Paul on February 01, 2002 at 16:28:09:
If you look at the
trigger unit from the front, there are two screws on the right side. The first
one is the trigger stop, the second adjusts the overtravel between first and
second stage. If you cock the gun and turn the second screw clockwise, the
trigger will go off - sometime. Go back from that point until the mag jumps out
again when the shot breaks (trial and error, no other way). If you want to train
for precision, you can even adjust it as crisp as you want, you just have to
cock the gun for every shot. The shorter the overtravel, the lower the weight of
the second stage. The "official" weight screw, vertically behind the trigger,
adjusts only the first stage, so you can find a balance between first and second
by adjusting the overtravel (and with this the 2nd stage weight) and the 1st
stage weight. As far as I know, after 3 years of LP5, 1360 gr. is not the best
choice of weight with the LP5 trigger. Personally I think that something between
900 and 1000 gr. gives you a much better trigger without diminishing the quality
of the training too much, but you'll have to try that out.
Posted by John MacLean on February 02, 2002 at 02:01:01:
Thanks for the
advice. I've adjusted the trigger per your directions and it seems much better.
I'll try it out tomorrow.
While I'm on this subject, I've got a couple more
questions.
First of all, I'm not completely sure of the definitions for the
following terms: "takeup", "dead travel" and "overtravel". How would you define
them?
Secondly, I like a crisp trigger but do some prefer a creepier let
off? I read one of Don Nygords tips and he seemed to suggest that a little creep
was necessary to develop an unconscious trigger pull.
Posted by Paul on February 02, 2002 at 10:24:27:
I hope I'm not confusing
things here by not adhering to international (english) standards, but in my
dictionary, it works like this:
a) takeup: A usually very small movement of
the trigger with very little weight, before the first stage. Some guns need this
so the sears can engage again after a shot when you release the trigger (f.e.
the FAS) b) dead travel: I think this refers to the way the trigger is allowed
to make after the shot breaks. It's usually stopped by the trigger stop,
although some shooters (including me) prefer a trigger which runs up again an
increasing weight without really stopping.
c) overtravel: The way the trigger
is allowed to make between first and second stage. A very crisp trigger has
minimal overtravel, a rool-over trigger has a very large overtravel. Very little
overtravel makes for high pressures on the sears, which is why people who insist
on using the crispest, driest possible setup should have at least two complete
trigger modules...
Personally, I used to shoot with extremely crisp trigger,
but I'm coming away from that now. I seem to shoot better when my unconscious
knows that the finger has to move - or the shot will never break (thanks,
Warren...) with the supercrisp setup, a sudden increase in pressure is far worse
for the outcome of a shot than with a longer overtravel and a softer release, or
so I think.
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