Air Venturi Avenge-X PCP Tuning Guide, AEAC Pre-video Learning

[squirrelinator]

I have a wood stock tube version. 25 cal and I am getting a constant poi shift left to right I will shoot a few groups no shift, go to shoot an hour later get a poi shift again and again. 25 grain fx pellets 905 feet per sec 2200 on the reg anyone else getting poi shifts. 50 yrd zero

 

[Dogowsky]

any one give an opinion on the Avenge-X .25 or the niksan Ozark - TS ? supposedly looks like kral and niksan are made in the same factory i do know the niksan is not regulated im on the fence ready to order 1 or the other but with the niksan being so new i cannot find any reviews on the .25 cal only .22 and no one is really doing any head to head comparisions . im leaning towards the avenge-x BUT i want to make sure i do my research esp with the niksan being 535$ atm on donnyFL 5$ over the avenge-x . the only person i could get a awnser from on this was a youtuber mentioned the avenge-x being more tunable .

I'd go with the Avenge X as it's regulated and has high and low power setting. Happy shooting!

 

[markhooper]

I performed this test already with my new Avenge-X .22 cal with the TP set to high tuned to shot the JSB 18 grains pellets between 870 and 880 fps (I don’t shot with slugs). Then with this same tune without touching anything else set his TP to low and shot a string of 10 rounds with the lighter crosman premier 14 grains pellets and this were the results. If you’re curious about the weather still been in the mid 80 degrees at this time of the year, I live in the Caribbean PR not in the states.

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Ray
so it actually shot a bit slower with the low setting and the lighter pellets?? if that's the case and you don't shoot slugs it might probably be a closer tune if you did the jsb redesigned heavy on high and the lighter crossman on low power..
Michael
do you think this might be correct?

I'd like it if one of you guys would test the idea.. I'd really like to know, it's going to be awhile before I get one.. probably try the bullpup tank version and that's going to require a optic too.. otherwise I will get the standard one.. the tank would be nice but it's lots more money..
thank you for the info
Mark

 

[markhooper]

I pulled some (actually quite a few) patches through the barrel with a Patchworm. It was dirtier than I expected. The manufacturer must’ve put some anti-corrosion stuff in there!

I put it over the chrony and it was shooting the 18g pellets a bit hotter than I like at about 920 fps. Not sure if the difference in velocity (from the 10 for 10 test) has to do with different elevation/atmospheric pressure or a clean barrel, but it was shooting 885 fps in Ohio.

I reduced the hammer as much as it would go. *it has a stop pin or something so you can’t accidentally back it out too far. Which is now giving me about 900 fps.

So I took the Avenge-X out back and sighted it in at 50y.

I tested 3 different brands of 18g pellets, and apparently this barrel like the H&N 18’s best.

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I hope you are still following the thread.. the post before you did some testing on the transfer port and so it seems like the jsb 18 was good on high but the 14 was a bit slower.. he said that he doesn't shoot slugs.. so I am hoping that slugs or not. maybe a high setting for jsb redesigned heavy and then low setting for the lighter crossman premier 14 grain.. would give us a better idea if the transfer port might be a way to shoot heaviest or slugs and then still be able to plink or target shoot shorter distances with the lighter ammo.
thank you
Mark

 

[markhooper]

Looks like they have updated their site to reflect the correct bottle size now. All the pages are showing 360cc

Pellet-Guns.com - Avenge-X X1-BS Synthetic NV Bottle 5.5mm

The modular design allows the gun to change to 3 different calibers and 8 different stocks, it can reach more 80 different combinations. Some of the parts can also be swapped with AR accessories. Whatever you can imagine is possible with the AVENGE-X.

www.pellet-guns.com

tpatner
do you think the bottle design in the video will be available? I was also surprised that it had both fill probe and foster fitting.. is that the same on the bottles you are listing?
mark

 

[markhooper]

The Avenger has the same problem. I was hoping with the Avenge-X the problem was corrected but it seems not.

could the barrel retaining set screws be loose? after a few magazines on the umarex notos it was doing similar and I checked the set screw and it was almost loose enough to remove the barrel..
just a thought
mark

 

[squirrelinator]

The Avenger has the same problem. I was hoping with the Avenge-X the problem was corrected but it seems not.

I have a wood stock average also and I was able to fix the problem because the avenger has 2 action screws. I bought a black arts barrel band and a donnyfl adapter and sanded the inside of the stock so the barrel and tube are floated. The average x wood stock only has one action screw. Will see maybe I can add and action screw if there is room around the trigger. Still thinking this out. any feedback of others having poi shift and thoughts would be helpful

 

[Tpatner412]

I have a wood stock tube version. 25 cal and I am getting a constant poi shift left to right I will shoot a few groups no shift, go to shoot an hour later get a poi shift again and again. 25 grain fx pellets 905 feet per sec 2200 on the reg anyone else getting poi shifts. 50 yrd zero

Have you tried free floating the barrel shroud or the air cylinder or both? This can be done by removing the O-rings inside of the barrel band.

 

[Tpatner412]

tpatner
do you think the bottle design in the video will be available? I was also surprised that it had both fill probe and foster fitting.. is that the same on the bottles you are listing?
mark

Not unless a 300 BAR bottle comes available for a reasonable cost. The US versions do not have a foster on the rear neck of the bottle or a spot for a fill probe as the QD is on the end of the bottle itself, maintaining the same fill procedure between the tube and bottle.

 

[squirrelinator]

Have you tried free floating the barrel shroud or the air cylinder or both? This can be done by removing the O-rings inside of the barrel band.

I have not tried floating the barrel by removing the oring I don't think you can float them both because there would be only one screw holding the stock on . I did get ahold of a bullpup barrel band and put that on forward helped a little

 

[shawnlyndy]

Mine arrived yesterday. Filled it up and could hear it slowly leaking down immediately. Will send it back next week.

 

[Ray_PR]

Ray
so it actually shot a bit slower with the low setting and the lighter pellets?? if that's the case and you don't shoot slugs it might probably be a closer tune if you did the jsb redesigned heavy on high and the lighter crossman on low power..
Michael
do you think this might be correct?

I'd like it if one of you guys would test the idea.. I'd really like to know, it's going to be awhile before I get one.. probably try the bullpup tank version and that's going to require a optic too.. otherwise I will get the standard one.. the tank would be nice but it's lots more money..
thank you for the info
Mark

Sorry for my delayed response I was not following this thread for a while. I received a few more different pellets to try them in my .22 and .25 cal Avenge-X airguns and also received a new pcp compressor to have a spare since I think mine is about to take a long vacation, . Yesterday I sold my Kalibrgun cricket II tactical locally as shown in one of the pics with everything included, the Sumo moderator and the Arken SH-4 scope because I want to buy the new FX King with his gorgeous GRS stock. I am just waiting to see a few more reviews to see if it meets my standards. I also received the heavier JSB redesigned pellets you mentioned, as soon I have the opportunity I will try to tested them along with lighters CPHP 14 grains with the TP of my X in the low settings and will share the results here in this thread. PS as a side note my Avenge-X in .25 cal LOVES the FX atomic 26.6 grains pellets at 35 yards all the shots were pellets over pellets…

 

[heavy-impact]

Mine arrived yesterday. Filled it up and could hear it slowly leaking down immediately. Will send it back next week.

I would determine where it's leaking first, could be a gauge needs to be tightened or the bleed screw or something else that can be fixed in seconds without rolling the Christmas shipping dice.

 

[squirrelinator]

Mine arrived yesterday. Filled it up and could hear it slowly leaking down immediately. Will send it back next week.

I had a leak in mine it was the foster fitting I tightend it no leak since

 

[markhooper]

I had a leak in mine it was the foster fitting I tightend it no leak since

well when you can hear it leaking, it's easier to find the leak..
makes me wonder if they don't test them prior to shipping.. id like to think that the factory pressure tests them but apparently not.. must be trying to get quantity and a bit less quality control.. or someone isn't doing their job.. likely the latter..
Mark

 

[Tpatner412]

I have not tried floating the barrel by removing the oring I don't think you can float them both because there would be only one screw holding the stock on . I did get ahold of a bullpup barrel band and put that on forward helped a little

Assuming we are talking about an Avenge-X and not an Avenger, free floating is easy and has nothing to do with the stock screws.

The two o-rings in question can be removed (or just the top one if you prefer) very easily to float the cylinder and barrel assembly. Worth a try.

 

[Tpatner412]

well when you can hear it leaking, it's easier to find the leak..
makes me wonder if they don't test them prior to shipping.. id like to think that the factory pressure tests them but apparently not.. must be trying to get quantity and a bit less quality control.. or someone isn't doing their job.. likely the latter..
Mark

They do get checked prior to leaving China and on their arrival to the US. In fact, unless the gun is shipped to the customer by air, X models should have air in them already. Of course, things do happen and it's certainly possible for an issue to arise in transit or for someone to have missed a step in their checks. Actually, one thing I've seen on a few of the guns I've checked myself is that the bleed screw on the action isn't 100% tight and leaking just enough where you can't hear, but see it over the course of a day. Other than that, the gauges and the QD fill nipple are the things I would quickly check just to make sure they are tight.

 

[squirrelinator]

Does anyone have the bolt probe oring size for the .25 cal on the avenge x

 

[markhooper]

They do get checked prior to leaving China and on their arrival to the US. In fact, unless the gun is shipped to the customer by air, X models should have air in them already. Of course, things do happen and it's certainly possible for an issue to arise in transit or for someone to have missed a step in their checks. Actually, one thing I've seen on a few of the guns I've checked myself is that the bleed screw on the action isn't 100% tight and leaking just enough where you can't hear, but see it over the course of a day. Other than that, the gauges and the QD fill nipple are the things I would quickly check just to make sure they are tight.

well if it's just a bleed screw, I'd think most would check it since it is user part with access.. but then again maybe people don't check.. as I have heard of others who couldn't get the empty gun to fill because it was empty and they didn't cock it to relieve hammer pressure so the valve can close..
I've got a american tactical liberty nova 22 that I got from AOA.. and apparently it is discontinued.. it's got a extremely slow leak 1000 psi per week until it gets to regulator pressure.. then it's stayed there for over a month.. I'm thinking it has to be something with the regulator atmosphere vent and sealing because it seems like if it was in the air tube or even after the regulator it would go empty..
it's very similar to the avenger or avenger X.. single tank pressure gauge and the port setting.. plus adjustable regulator from the outside..set at 2000 PSI
any ideas on it would be appreciated..
Mark

 

[Tpatner412]

well if it's just a bleed screw, I'd think most would check it since it is user part with access.. but then again maybe people don't check.. as I have heard of others who couldn't get the empty gun to fill because it was empty and they didn't cock it to relieve hammer pressure so the valve can close..
I've got a american tactical liberty nova 22 that I got from AOA.. and apparently it is discontinued.. it's got a extremely slow leak 1000 psi per week until it gets to regulator pressure.. then it's stayed there for over a month.. I'm thinking it has to be something with the regulator atmosphere vent and sealing because it seems like if it was in the air tube or even after the regulator it would go empty..
it's very similar to the avenger or avenger X.. single tank pressure gauge and the port setting.. plus adjustable regulator from the outside..set at 2000 PSI
any ideas on it would be appreciated..
Mark

Yes, you're on the right track. Not terribly familiar with the Liberty, but since it leaks down to the reg pressure and stops, it should be leaking in front of the regulator. So could be cylinder o-rings, one of the external reg seals or the fill port.