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| I was recently at the range talking with a friend about
adjustable triggers on military rifles. He asked me, "What's
the point? Anyone can shoot well from the bench, even with creeping
military two-stage triggers." I don't believe the statement is exactly
true! How many of you love your Milsurp rifles, but hate their triggers
(a rhetorical question)?
Let me describe a scenario for you - your rifle or carbine looks
great, the barrel is pristine, headspace is perfect, but the trigger
pulls forever and breaks about as easy as pulling a nail out of
a block of wood!
I had a German Mauser 98k that matched this description. I once
took it out to the range for a shooting session with the intention
to write a "Range Report" for the German 98k Rifle Section on Surplusrifle.com.
I was so embarrassed by the performance, no matter the ammo used,
that I never wrote the article. Maybe I will save the pictures of
the targets for a Military Shotgun Section, if I ever create one.
It just never shot right! Hell, I have SKS Carbines that have better
trigger pulls then this 98k did.
I had been thinking about writing a "How-to" article based upon installing
a high-performance trigger in my 98k and taking it to the range
to see if it would help.
John F. Huber contacted me via email to discuss his new trigger.
The timing was excellent.
John owns Huber Concepts and crafts the Huber Anti-Friction
Ball Trigger, for some of the greats in Military rifles - the
US Model 03A3, Enfield P-17, SMLE, Arisaka
Type 99, and the Mauser 98k.
He asked me to give him a call, so I did and after we discussed
the idea for the article he shipped me the trigger.
John told me that he was confident that he made a product that
would stand up to anything else made; a solid stainless-steel trigger
with a very unique anti-friction ball that made the trigger pull,
smooth.
The Huber triggers come in three flavors -
- Match Grade: Looks pretty much like the original trigger
on the outside;
- Ultra Light: A skeletonized version of the Huber trigger;
- Custom: Out of this world in appearance. Your imagination
is the only limitation.
Note: You can view pictures of the different types
of Huber triggers at the end of the article.
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Legend
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Click on any of the images below
to see a larger version of the image.
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When I first took the trigger out of the package, I was really taken
with the unique look and design (as shown in the legend
above and figure 1)! Very distinctive looking, almost
like a piece of jewelry. I read the instructions and it definitely
seemed like I could handle the installation. What did I have to
lose? I never took the rifle out of the safe to shoot anyways. I
had even thought about selling or trading it for something else.
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On close inspection the Huber trigger is very adjustable.
You can make three adjustments via the supplied allen wrench:
- Over-travel;
- Anti-friction ball;
- Trigger creep.
over-travel is how far the trigger travels after you break
and fire a round.
Anti-friction ball adjusts the sear engagement.
Trigger creep is how far the trigger travels before you
break and fire a round.
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The original trigger (as
shown in figure 3) is not adjustable and has been the
bane of my existence.
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 After disassembling
the 98k, the trigger is easy to remove. I removed the entire trigger
assembly including the sear by punching out the sear pin (as
shown in figure 4).
Using a punch, I tapped out the trigger pin and the original
trigger fell out.
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Installing the Huber trigger is just as easy as removing the
old trigger. I placed it in the sear and tapped the trigger pin
back in.
Note: In figure 5 the Huber trigger has more
metal surface area below the sear, when compared to the original
trigger pictured in figure 4. You will need to remove
some of the wood in the stock for the new trigger to move freely
without obstruction.
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Figure 6 shows
the stock prior to removing any of the wood. I suggest taking your
time and removing a little wood at a time. Put the receiver and
barrel in the stock and see if you can easily move the trigger. |
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You can either use a rotary
tool like the Dremel tool with cutting bits as shown in the picture
to the left. If you don't have a rotary tool, don't fret. You can
also accomplish the job with a good wood file. It will take a little
longer and considerably more elbow grease to finish. |
Figure 7 shows the completed stock modifications. Don't
worry - you cannot see any difference on the exterior of the rifle
stock. I noticed after tightening the trigger guard screws that
it was difficult to pull the trigger, so I had to remove just a
little more wood and everything was fine.
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Adjusting the trigger is easy.
With the bolt installed in the rifle, I found I did not need
to adjust the trigger's ball, but there was noticeable trigger creep
and over-travel.
I adjusted the over-travel by installing the bolt and while pulling
the trigger I found the drop-off point or break (the point where
the rifle fires). I adjusted the trigger so it would not travel
any further than required to break and then per the instructions
I backed the adjustment screw off by 1/2 turn.
Next, I adjusted the creep so the rifle had a short and crisp
trigger pull.
Note: Once you are finished adjusting the trigger,
it would be a good idea to put some
Locktite or some of your wife's nail polish to keep the adjustment
screws from coming loose.
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I reassembled the rifle
(as shown in figure 9) and tried the trigger repeatedly.
Wow - what an improvement!
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The real test would be a shooting session at the range. I loaded
up with three different 8mm Mauser loads that I had in storage and
headed to the range.
I warmed up at 50 yards and found it shot like I had always dreamed
my 98k could. Finally the rifle was really something to be proud
of. I had considered prior to this hanging it on the wall for decoration.
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The trigger pull was excellent!
The instructions that come with the trigger state the following
- "the trigger will roll over the wall with a smooth clean
break at less than 27 ounces." No false advertising
here! The trigger pull was smooth and crisp and broke very clean
for every shot. I was grouping really well and decided it was time
to up the ante.
I decided to move the target out to 100 yards and see how she
would perform.
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Figure 12 shows my first 5-shot grouping at 100 yards.
I would have shot a perfect score, but I jerked the rifle by accident
and hit the 9 ring on the last shot. After this photo, I fired an
additional 20 rounds and literally knocked the center out of the
target. Not one single shot was outside the black!
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Afterwards I shot a Mosin-Nagant 1891/30 that I had previously
thought had a very clean and crisp trigger and found it was
considerably harder to pull than the 98k outfitted with the Huber
trigger. I am now really anxious to try one of the Huber match grade
triggers on a Yugo m48 project gun I am working on.
The trigger I reviewed costs $64.75 and can be ordered from:
Huber Concepts
514 Thorp Street
Fond du Lac, Wisconsin 54935.
email: huberconcepts@charter.net
phone: (920) 921-9641
John is currently working with Brownells to get his triggers
added to their catalog and I will post the link when it is added.
Click on the images below to see other trigger styles and read
the instructions that come with the trigger.
jlm ;)
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New Article
Update - April 9, 2003
Yugo M48 Match Grade Trigger Installation
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Well, John took me up
on my request to install one of the Huber Match Grade Triggers
in a Yugo m48 that I own. Figures 14 and 15
shows the trigger I received. |
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I like that this trigger
has the look of the original Yugo trigger that I was replacing.
I really did not want to modify my Yugo externally and wanted it
to appear as an original configuration from the outside. I did not
mind that it would be a little tuned-up on the inside! |
I followed the same exact steps laid out in the above 98k article
for the installation of the trigger in the m48.
After disassembling the Yugo m48, the trigger is easy to remove.
I removed the entire trigger assembly including the sear by punching
out the sear pin (as shown in figure 16).
Installing the new trigger is easy, I placed it in the sear and
tapped the trigger pin back in.
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I had to remove pretty much the same amount of material inside
the stock as I did with the 98k installation. I used the rotary
tool and a cutting bit to accomplish this.
Note: You do not modify any exterior surface of the
rifle or rifle stock. You only need to remove enough wood inside
the trigger area of the stock to allow the trigger to travel back
and forth. There is no visible modification to the exterior of the
rifle. It still appears stock military.
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I adjusted the over-travel,
friction, and creep and reassembled the rifle. Figure 18
shows what I mean by the final installation looking like a stock
military trigger. |
It may look like a normal Yugo m48, but I guarantee that it did
not shoot like a stock m48. Usually when I get to the range it takes
me a little while before I start to warm-up and get reasonable groupings.
I sat down at the bench and loaded a single round and fired at 100
yards. I then checked the spotting scope and saw that I had scored
10.
I thought it was a fluke and loaded the magazine with five more
rounds and fired quickly. I went back to the scope and saw the grouping
you see in figure 19. It was a long 15 minutes until a cease
fire was called and I could walk down range and photograph the target.
I was able to do this repeatedly.
I found this Teflon coated trigger is actually smoother in operation
(but not by much) than the Huber Stainless Steel Ultralight Trigger
that I installed in the 98k.
jlm;)
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John's Technical Notes
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Arisaka
T99-T38 trigger pins diameters varied 3mm (.118in.) - 3.5mm (.138in.)
. Last one at .125in. (possibly due to not having but only
just adequate to do the job-pin!) I have reamed the holes
in my triggers to .1185 to allow slip fit to the smallest pin,
meaning the larger pin requires to size the trigger pivot hole
in the trigger. I thought the better for functional accuracy
than size to the larger. I just realize that I have been
sizing the Mausers for the largest found so far ,but varies less
(.116-.125) and I opted there to size to .1265. On
03A3's I found pins consistent to .133.
I have also been told that "some" consider the Arisaka
one of the strongest actions made for the time - I can't
see it.
The pin on the front of the sear concentric with
its spring which engages the bolt underside recess as a bolt-fire-in
-battery Safety. But with the Huber trigger able to adjust
up real close that the sear position is such that the pin drags
the bottom of the bolt during stroke, it is shortened by .010-.020
but I have disabled that function in my guns AS DID Mauser in
his later rifle designs. Enfield used the pin -lock-safety,
too.
- John Huber
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| IMPORTANT
note: the trigger is newly U.S.Patented and UPC coding for
supply considerations, F.F.L.,Reg.Trademark of service and installations. |
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Front and Back of Instructions
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Inside of Instructions
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