Q:

EDgun Matador is the #1 PCP in the world…

EDIT: This was not a gun problem after all… It was a problem with my adjustable magnification scopes… All 3 scope (Leapers 8-32X56, Nikko Stirling Diamond 10-50X60, and Leapers 4-12X40) were losing their zero and shifting the Point Of Impact every time I moved the magnification adjustment wheel from the lowest setting to the highest setting and back again to the lowest setting…

Eduard, here are some 65yd groups I shot this morning…. It seems that
sometimes it is a laser shooting 3-5 shots on top of each other and then shots
start to fly everywhere… I cleaned the barrel very carefully and shot some 100
shots before shooting these groups… The wind was absolutely zero… My
Combro is on the blink so I could not get any FPS information…. This gun has
well over 10,000 rounds through it. It does not make a difference what
the psi is in the gun and I removed the shroud/mod to make sure it was not
causing any problems. (See group on bottom left that says “No mod”)
I also pulled out my Rapid to make sure that it was not the conditions.. The
Rapid shot a 10 shot sub 1″ group at 80yds. The EDgun shot 2 sub 3″
groups so I know it was not the wind nor the shooter causing the wild
flyers…. I ordered a new Chrony this morning so I should have FPS info
next week….

EdGun

All Replies

Viewing 15 replies - 91 through 105 (of 216 total)

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quote oldgoat:

You have over a 30 fps variation between the 1st and second fills. Mine is always very consistently in the 880s after a 3000 psi fill.

Could your depinger have moved back against the regulator and be causing the problem? A small piece of the depinger restricting the regulator?

I feel for you Mam, shit like this drives me crazy!

Yea it is frustrating… The hole in the reg is in the middle so no chance of the
depinger plugging it…. Would be great if that’s what it was. I think it is
the air valve or the reg….. Hoping Ed has some insight…. I will shoot groups
over the chrony tomorrow to try to see what speed the fliers are traveling at.

You have over a 30 fps variation between the 1st and second fills. Mine is always very consistently in the 880s after a 3000 psi fill.

Could your depinger have moved back against the regulator and be causing the problem? A small piece of the depinger restricting the regulator?

I feel for you Mam, shit like this drives me crazy!

Ok , what do you think…
Here are the results…..
From 1-32 of 64 shot string from 3,000psi to 2,200psi

32-64 of 64 shot string from 2,200psi to 1,600psi

5 shot string from 2,200psi

10 shot string from 3,000psi
]

Brain fart. ignore this

I told you it was all shot out. Should have taken my offer 😆

quote Mr-lama:

I’m not convinced you don’t just suck at shooting….

Well excuse me “Mr. Blazer 1/4” X 5 shot group at 5,000mtrs offhand…
😯 Holla back when you’re 50… 😆

I’m not convinced you don’t just suck at shooting….

quote Ted in Madison:

Whoa, Mam. That is a tight string! Obviously, I don’t need to give you any chrony advice ;). I’m going to start rummaging through the old threads and see if I can find the correspondence (between you and Ed re: tuning) that you spoke of. If you happen to know the direct link, I’d appreciate you posting it.

Ted

Eduard, Tony, and I did all of the tuning through emails just because it was
quicker. I don’t remember posting the info on the forum….. I had all of the
information but lost everything 2 months ago when my computer took a
crap…. Bottom line was, the gun was set way too high shooting JSB 18.1gr at
an average of 930’s…. I don’t know if I would do any more adjusting on
your’s…. It looks pretty good where it is… I think that I have just
worn something out… Even though the Matador is wounded at the
moment, I wouldn’t let down my guard if I were a creature of
nature…lol…

Whoa, Mam. That is a tight string! Obviously, I don’t need to give you any chrony advice ;). I’m going to start rummaging through the old threads and see if I can find the correspondence (between you and Ed re: tuning) that you spoke of. If you happen to know the direct link, I’d appreciate you posting it.

Ted

Ted another ideal way to tune the Matador is to screw the adjustment screw
clockwise until you see a reduction in speed and then another increase. You
then start backing it out past the first peak…. Ed may correct me if I am not
explaining it right… I have done this in the past with Ed’s instructions and
found the gun was shooting the most accurate between 880 and 890FPS. I
shot groups and measured speeds every 1/8th turn out on the adjustment
screw until the groups got tight and then opened back up. Once the groups
started to open up again I then started turning the adjustment screw back in
until I saw the groups tighten again so I appreciate and understand the work
you did to get your gun on track… I will surely have to do it again but I
am not looking forward to it… It is a very tedious endeavor but worth the
effort. All I can say is Thank God I have a compressor…Man waiting for this
chrony is killing me….. 😡

These are 2 strings from way back…. I am hoping I can get it tuned to
shoot this way again….

quote mamcrackin:

I am getting less than 40
shots from 3,000 to 2,000psi…. So, I will wait for the crony (Due in on
Thursday)…

1000 psi = 69 bar.

If your gun is shooting at the optimal range (880-900 fps using 18.1g JSB’s), then it should be using 6 (sometimes 7) bar per 5 shots, or giving you around 55 shots. So, yes, 40 shots seems low, and the gun seems to be “wasting” air.

When I had the hammer spring adjusted too high on my Edgun it also seemed to be “wasting” air. Here is a shot string from 2950 psi to 1950 psi – 45 shots – when I had it adjusted for too much power.

You can also see how much the fps changed from the high to low pressure.

Something you could try without a chrony would be to screw the hammer spring adjuster clockwise, and count the number of revolutions it takes for the adjuster to hit the “max” stop. If it is less than two revolutions, your hammer may be smacking the valve with too much force.

If this is the case, back it out 2 revolutions from the max setting, and try it again.

I had a valve go bad on my Marauder. When it did, it was not a 25% increase in wasted air. My gun went from 30 shots on 1000 psi to 10.

quote mussolini:

my guess is the regulator is not working anymore…no point in speculating further until you get hold of a chrony…

If it is the regulator going bad, that would be good news… I happen to have a
brand new spare Matador Regulator. 😀 I will only need instructions to install
it…

my guess is the regulator is not working anymore…no point in speculating further until you get hold of a chrony…

Not good news… Here are the groups this morning…. This is with a Leapers
scope and the groups look similar to the Nikko Scope…..
The groups seem to get worse as the psi drops in the tube…..
It also appears that the gun is using a lot of air… I am getting less than 40
shots from 3,000 to 2,000psi…. So, I will wait for the crony (Due in on
Thursday)…

quote mussolini:

regarding the scope issues…make sure you are not at the limit of your adjustment range on the elevation turret…it is quite easy to reach if you are zeroing at 50-65yrds and have not shimmed the mount or used adjustable mounts…

when using the scope with the elevation turret dialed right out it can cause some weird problems….

Thanks mussolini I understand… Scope is shimmed with Scope rings made to
shim +0.10″ rear… Plenty adjustment left…..
http://www.theriflescopestore.com/bu30zeeri.html

Viewing 15 replies - 91 through 105 (of 216 total)

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