MATHEWS TRX 38 BOW BUILD My Indoor Archery Setup

Exploring Ancient Crossbows
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7 Video Views·Mar 29, 2026
MATHEWS TRX 38 BOW BUILD My Indoor Archery Setup
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What's going on everyone?
Welcome to today's video.
It is October 26th and I'm not in a tree stand
because it is a southeast wind
and it is like 20 mile an hour winds.
So today we're using this time to make a couple videos.
And I've had this bow, this TRX 38 sitting on the shelf
being ready to be built for like two months now.
So today's the day we finally got to make it.
And what I want to do with this bow
is make it my indoor rig.
For right now, it probably will transition
into like my outdoor rig, but I need an indoor bow.
Indoor season is right around the corner.
Probably actually like start shooting in December-ish time.
So it's always good to be a little bit ahead of schedule
because I never am.
So today we're going to try to get
a little bit ahead of schedule.
We have TRX 38.
This is gen two.
So they had two gens.
This was the, this was the first,
no, they've had three gens of,
they've had three gens of TRX 38s.
They had the one prior, which was the old focus grip.
Then they have the second gen, which is the new grip.
And then they have the third gen,
which is dovetail for the rest and third axis dampening.
So that's the difference.
Just some minor tweaks.
Oh, and they got rid of this top dampener right here.
So they literally just have this third axis dampening,
which is what they rock and roll with now anyways.
So we're going to get this set up.
I'm curious to see if there's going to be any difference
between these two.
They should shoot relatively similar.
We got some Shrewd Rev-X bars.
We got an Accel, oh, Achieve XP.
Forgot what the name was.
Accel, Achieve XP.
Got a UltraView 3, be real grip.
I got a hinge because we're going to have to shoot it.
I have a Matthews Shrewd Genuine sidebar mount.
Probably take this angle down off of old one.
We're going to take this ham ski rest off of the old one.
And I have a specialty arch repeat
that I'm going to take off of this one.
So we're going to kind of cannibalize this bow,
put it on this bow.
And we have, I've been doing a lot of testing as of lately,
and we have some Victory V-TAC 23 indoor arrows.
So 23 diameter, a great arrow for indoor archery.
It's a 23 diameter because you can use it
in any form of 3D archery.
Like USA archery, world archery tournaments,
this is the biggest arrow you can get.
And for NFA stuff, you can go bigger,
but this is like the threshold of USA archery type stuff.
So I think I'm going to fletch these up.
We're going to build this out, try to get a bullet hole,
see how it shoots a little bit
and see where we go from there.
A trick, it's really not a trick anymore
because it seems like a lot of people do it.
But when installing a ham ski rest,
I don't have the stock one that came on.
I don't know where it went.
I must've cut it off a while ago.
But you run a cord down to the limb
and it comes with a, like a limb stop thing.
What I like to do is take my cord.
I just use D-whip material.
I've used, I've even used serving material before
and it's worked.
But D-whip material is a little more rigid.
But what I like to do is there's this little plate
down on the bottom and all it does is hold in
these bow press little hooks down here.
You can actually loosen them just enough
to where you can squeeze in a cord right behind there.
So you got cord right here.
And now what I'll do is I'll just tighten that back down.
I'll tie this up and then I can run my cord
all the way up to my ham ski, tighten it down.
I'll have to find a little tightener, tensioner deal.
I don't know where that went.
But it's a good nifty little thing.
And I haven't noticed any like accuracy or efficiency
or wear or tear or anything by doing this.
It literally is just a plate to hold
in those little bow hooks.
So good little trick.
I gotta find the tensioner thing though.
If you run this down low,
there's a lot of vibrations that come from it.
So if you run it a little higher,
I feel like there's not as many vibrations.
Don't know if that's right or not.
Okay, so we have the ham ski completely installed.
I'm gonna flip the bow around.
And then next we're just gonna throw the peep sight in,
roughly.
And then we're gonna find our correct knocking point.
Tie that in, tie the D loop,
adjust the peep sight right by drawing it back.
And then we're pretty much ready to go
to get a rough paper tune.
Oh, first we'll have to fletch and make one of those arrows.
Then we'll get a rough paper tune.
I'm curious.
Have my, just a ham ski type of day.
Ham ski gen, gen two pro level.
It's been my go-to lately.
So I made this like emergency kit that's in my trucks
since I've been like traveling around so much.
So what I'm gonna do is I'm gonna use a bow square tool,
which I normally don't do.
I normally put a level on the bow and level it all out.
But this essentially does the same thing.
You can get it pretty dang close
and then we can go paper tune from there.
But what a bow square does is it's a 90 degree
when it clips in the string
and then you use this to find exactly
where it sits on the rest.
The only thing I don't like is it does,
depending on how the valley is on the rest
and the diameter of the arrow,
there's a little bit of play,
but it'll get us close, close enough.
I guess you don't even have to worry
about the valley or the rest,
because this is a drop away,
which we can go like this.
You loosen it up.
There we go.
Loosen it up and quickly we can see how deep the arrow sits.
We're doing some class A eyeballing
since we don't have the right stuff.
What I think this is what I'm gonna do.
I'm gonna tie it in for straight through the burger hole
and then I'll just bump the rest as be afterwards.
So that should work just fine.
Guessing that's the thickness of the knock.
You want just a little bit of slop,
about like one serving.
You want like one serving.
So instead of tying down on the one
that's gonna cinch it down tight,
I go like the one over.
Because when you draw back,
it creates a little bit of pinch.
If you watch any of my builds, you know that.
Assuming there's some new people watching this.
So there we go.
There's our two little ties.
We just do simple overhand knots over and underhand.
However, whatever type of knot that is,
the simple one that you'd like tie your shoe with first.
Over and under.
I make my bottom one one serving thickness longer.
So I think I do three ties on the bottom,
two ties on the top.
And I don't know.
I just kind of have always done that.
I either do one on the bottom only or I do it that way.
So now we take our dilute material.
My lighter is giving out on me.
I swear, the lighter is one thing
that just always disappears in shops.
Like lighters, lighters and Allen wrenches.
It's like you can never have enough of them
and you can never find them when you need them.
Yeah, look at that.
It's dying.
Let's give that a good snug with your hand
before you tie it all the way down.
I think I might like a longer dilute on this.
I'm gonna just run a little bit longer dilute.
Probably start out something like that.
And then I'll cut it.
Never try to let it on fire
because I hear it makes the material brittle
or not as strong.
I should actually do some research into that.
I just hear that that's how it is and believed it.
And it kind of makes sense.
It catches on fire, breaks down the particles
in the dilute material.
So I just try to just heat it up enough to where it melts.
Where did those pliers go?
Just losing everything today.
There we go, we got our dilute.
Hopefully it's in the right spot.
I think I did that right thinking through it
with this square.
Now what we're gonna do,
this arrow doesn't have a tip in it so I can't shoot it
and we shouldn't shoot it yet
because our dilute is not tied in.
Do not shoot it without your dilute tied in
at least a little bit.
Peep tied in.
Peep, what was I saying?
Dilute.
Yeah, don't shoot it without your dilute.
No, I'm just kidding.
Yeah, don't shoot with your peep sight not tied in
because you could lose an eyeball.
So what we're gonna do,
we're just gonna get our peep sight height.
I have it roughly where I need it,
but we're gonna draw back, see how it feels.
That way high.
Just take it, bump it down.
Don't need a bowl press or anything.
If you're at this stage.
Don't wanna do that.
It's probably decent.
Let's see if this thing works now.
Oh, why is it, hold on.
Getting some weird twisting going on.
Ever so slightly crooked to the left.
Just a touch more, but that's pretty close.
It's amazing, it's all the way up there
and it's affecting.
Dope.
Okay, so now we're lined up pretty good with our peep.
Might have to adjust it a little bit
because as you shoot, you find that you hold steadier
and you're different.
Fine tune your anchor point
just by bumping it up and down a little bit.
So what I'm gonna do right now
is tie in this one just right around here
until I for sure know it's in the right spot.
On a hunting bow build or something,
I'm less finicky about it
just because you're running up and down
your sight tape so much.
You set it in the middle of the road and just run it.
But on an indoor bow where you're shooting 20 meters only,
you really can get it dialed in just how you want it.
Here we go, there's that.
Next we're gonna throw our sight on.
The axis on the sight, the second and third axis
is already set up because I took it off on another bow
so we don't have to worry about that.
But we're just gonna put everything on
because having long stabilizers on
does affect the paper tune,
can potentially affect the paper tune.
So I'm gonna throw it on.
I don't have the weight set up to how I'm gonna want it.
I just have these bars with a little bit of weight on it.
This is the wrong click disconnect.
How the hell the bow with long stabilizers in a while?
Oh, I almost forgot.
We have to put on the B-roll grip.
If you have a stock grip on
and you wanna put a B-roll grip on,
easiest way to do it is you pull this top little corner.
Just kinda slide it down and then you peel it around
till it just pops right off.
Super important, do not do this.
Do not do this.
Don't take this and I'll throw it right on there
without taking all of this sticky stuff off.
If you put a B-roll grip on with all of this sticky glue on,
you now have permanently mounted a B-roll grip
onto your bow and congratulations
because you are not getting it off.
Boom.
All right, let's paper tune.
Oh, JK, we gotta make an arrow real fast.
I am gonna be doing 120 grain tips.
Test them out, see how they fly, see how they tune.
I think I have a couple different options,
so if they don't work, we can mess around with it.
These should work though.
And I have this tiny little bit of glue left.
I didn't realize we are pretty much out of glue
in this place, so here we are.
Trying not to burn my fingers.
Playing with fire over here.
Tip installed.
Shut this off before I burn something.
And we're gonna fletch these up
just with the Bitsenberger real quick.
I have these set up the same way I had my,
oh, this is set up as a four-fletch, ain't it?
Because that was the last I fletched.
90 degree, yeah.
Should we four-fletch these?
Send it?
A little overkill, isn't it?
Is it?
Yeah, I feel like it is.
Yeah, let's change it to three-fletch.
Because I fletched up my Pro Comps for elk four-fletch
because I was having some broadhead issues.
Fixed it, but for indoor stuff, really don't need it,
and I got these bigger veins.
So let's do, feels like three.
Fletch them up and see if it's actually three or not.
Pull three out.
These are Boning X-Vein three and a half.
I like to run a little bit bigger for indoor
because it really doesn't matter.
Really, I was told once for indoor,
indoor, a tune almost, a lot of target stuff,
like tuning is, some people go so extreme,
and there are some pros that just really don't give a rip
and literally don't tune their stuff
and they just throw it on and shoot it.
Because we're not dealing with broadheads.
We're not dealing with anything like that.
It's literally, it doesn't matter
if the tip's sticking in
or the nock's sticking in the target
as long as it's doing the same thing over and over again.
Seriously, George told me that once.
So we'll fletch these bad boys up, see how they do.
All right, let's see how much I suck
at putting this together.
Wow, haven't showered in a little while.
All right, we are a little nock high,
so we gotta bump our rest upward.
Close, get a little right.
We'll bump it up a little bit more.
Very close, it is a little right.
So let's move the rest to the right.
Oh, nice.
I think that's good.
For indoor stuff, I really don't care too much
because 20 yards, it's got a little wobble.
As long as it hits the same spot,
you really realize that by just shooting
and you know if you're shooting spots really well.
You just kind of know.
You watch the arrow flight and everything.
Some guys even put a wicked left tear in it
just to have some consistency in the arrow
doing the same thing over and over again.
We're gonna run that and that is a complete bow build
because it is about 30 mile an hour winds outside
and I am not shooting.
That back target just needs to be quiet.
I am not shooting outside.
So there we have it.
This is my bow that I'm gonna be shooting
for this indoor season.
TRX 38 with all the goodies on it.
It feels good.
It feels like I am completely out of shooting shape
for competition stuff because I'm wobbly.
Been shooting hunting bows too long.
So hope you guys enjoyed this video.
As always, make sure to check out brollmerch.com.
Pick up a hat.
A lot of new stuff is back in stock
and a couple new things.
Make sure to check it out
and make sure to subscribe if you like this stuff
and we'll catch you in the next one.
