My Edgun lost some velocity

Hi Gabe.

Too bad that you didn’t shoot another 10 shots or so. I think that your Matador might have got over 1000 fps.

If I was doing the adjustments, I would start at ½ turn clockwise on the reg adjuster screw, turn the HST screw out at least 1 turn and go from there. Put the gun back together, shoot 1 shot, to set the regulator and then adjust the HST screw ¼ turn after each shot until you get the max speed. You will probably have to go back in for a little more reduction but, ½ turn is a good place to start.

My R2.5 25 cal long version shot the 25.4 grain JSBs at 1040 when I first got it. I had to turn the adjusting screw clockwise about 5/8 turn (if the reg started at the 12 O’clock position, I ended up at 7:30) to get the gun in the 880-890 range. Remember to mark the adjusting screw and reg housing, with a black marker, so you can keep track of where the reg was before you started adjusting it.

Also be absolutely sure that you have all of the air out of the gun before you remove the front plug!

I had a guy send me his Matador, asking if I could repair it. He thought that he had all of the air out, didn’t, and removed the front plug. He sent me a couple of pics of his hand, nothing was broken but, his hand was really swollen and black and blue. It hurt just to look at the pics! He had taken 2 of the 3 screws out and was removing the 3rd when the air pressure stripped the plugs 3rd hole’s threads out. I was able to clean the threads up, run a bottoming tap in deeper and use a longer bolt to get him going.

He was very lucky! There couldn’t have been much air left in the gun, things could have went really bad for him if there had been!

Since seeing his pics, I now loosen all three screws just enough to clear the bolt heads and look for any forward plug movement. The 3 bolts SHOULD still have enough threads left in the plug to keep it from blowing out. Seeing the plug move forward would really be a HOLY SHIT Moment! 😯

Hi Gabe.

I didn’t have any problems with the Teflon transfer port O ring. I finally replaced it with the proper brass O ring that should have come with the gun (Thanks F&D!). If you have a brass one, you won’t have any problems with it and should never need to put a Teflon O ring in there. If you do put one in, you need to open the ID of it up with a drill bit before you put it in.

As far a ordering O rings from McMaster Carr, they don’t have any Buna N “O” rings that are over 70 Duro on the Shore A hardness scale.

The only 6 “O” rings that I have ever needed for any of my 4 Matadors were: 5mm ID X 1.5 mm cross section 70 Duro (for the breech end of the barrel, your R3 doesn’t use one), 3mm ID X 1mm CS 90 duro (22 cal probe), 4mm ID X 1mm CS 90 Duro (25 cal probe), 8 mm ID X 1.5 CS 90 duro (reg bobbin), 12 mm ID X 2.5 mm CS 70 duro (reg bobbin) and 25 mm X 3 mm CS 70 duro (air valve/regulator housing).

You can get the 70 Duro O rings from McMaster Carr. The only place in the US that I could find that can get 90 duro O rings is:

ksauer@sealingspecialties.com Ken is a great guy to deal with! Unfortunately, they have a minimum order of $20 for each size but, $40 gets you 500 of each. IIRC, shipping was around $7.00.

When I do the group Matador O ring buys, I order everything from Ken.

You will wear out the cocking handle probe O rings pretty fast on the R3. You can find 70 duro O rings to put in there but, they won’t last any longer. The 90 duro O rings last a whole lot longer and just need a little silicone grease on them when they start to leak a little. I have worn out the reg’s bobbin O rings but, it took at least 15,000 shots to do so.

If you watch what you are doing and don’t nick/cut the reg housing O rings, I don’t think that you will ever need to replace them. Your gun should have come with 2 spare probe, 2 reg housing and 2 filling probe O rings. I am still using the fill probe that came with my R2.5 22 cal standard 4 years ago. I hooked it up to my SCBA tank’s hose and have been using it to fill all of my Matadors. The original o rings on it are still going strong. A little silicone grease every so often really helps them to last.

I’m sure you know but don’t forget a bit of anti-seize on each bolt. It makes a world of difference when you start going anal on the reg adjustment to get that 2-3 fps standard spread. Have fun

Hi Gabe.

After you adjust the reg, turn the HST screw out at least 1 full turn, fill the gun and then start turning the HST screw in until you get the max starting speed. You need to look for the max speed after you have just recharged the gun. The HST and reg work in unison and the max speed that you can get will give you an idea about how the reg is set.

If you can’t quickly reach 910 (which I think is a little too high), you have turned the reg down a little too far. If you can turn the HST screw in and get speeds of over 910, you can/should turn the reg down a little. How much more it needs turned up/down depends on the max speed that you can get by just turning the HST screw in.

Keep turning the HST in until you get the max speed that you can get. It might take you 10-12 HST adjustments to get the max speed so, refill and see if the max speed is still the same.

Again, starting out at the max speed and then dropping means that the reg is too low. If your max starting speed slowly increases as you shoot a string, the reg is still set too high.

You are down to 100 pellets and out of air?

GOD, I couldn’t live like that! 😯 😆

Oldgoat and Zocoloco, etc.

I am proud to be a part of the edgun community that includes you guys as members !

I very much enjoy reading your helpful posts – You make owning these guns more enjoyable and are probably helping more people than you realize when you post this information. And those that don’t need the help now are enjoying learning more about their guns this way.

🙄