NEW Air Venturi Avenger Regulated PCP - Ultimate Owner/Tuning Guide!!

If the 5th picture down from the top is a picture of the barrel without the shroud around it, then the barrel doesn't look like it has a crown on it. That seems strange to me. I'm wondering if the rifle's accuracy could improve with a proper crown? I actually can't even make out the rifling? Maybe it's just the angle. But I for sure don't see a crown.

There is no crown but it doesn't seem to matter. Steve
 
I like it :) hope there’s a wood stock option coming soon
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Hey guys I'm keeping tabs on the day to day from AEAC's FB & IG pages and THIS IS REALLY EXCITING! Check out the Labradar #'s associated with the graphs. Keep in mind this all from a 180cc air cylinder!



AEAC Power Tune = JSB 25g @ 867 FPS for 50 shots

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AEAC Pro Tune = JSB 18g @ 864 FPS for 72 shots

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AEAC ECO Tune = JSB 15.9g @ 858 FPS for 99 shots

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AEAC OEM Tune = JSB 18g @ 903 FPS for 87 shots

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ES not great on all but the power tune (imo) but easily remedied with some customization by means of buffer.



Power tune (not really a power tune per say, just another tune imo) with the best ES of 17 fps has an efficiency of ~1.25 FPE/CI...not shabby. Need to know its true plenum volume to determine exactly what that is...I guessed at around 7 cc's total plenum volume. At that power level (42 fpe), with the barrel length this rifle supports (22.75"~), and the pressure it was shooting at (2700 psi), well, in respect to that, its quite bad....but thats due to that incredibly small plenum volume that likely sees a pressure drop of well over 1000 psi during its shot cycle...as opposed to one that is twice its volume seeing only 500 psi, or quadruple its volume while only seeing 250 psi drop (much more ideal)...


Ultimately, that pressure drop equates to much less average pressure at both the valve seat, and behind the pellet as it travels down the bore...its detrimental to performance to have such a small plenum volume...such a feature rich gun to have failed there (imo).



The good: Ultimately, you are getting a lot of gun for 300$ with this package. Large range of adjustments, some of which unheard of at this price bracket. 4350 psi rated. Side lever.



The bad: Small plenum (way small) which is severely limiting on lower pressure tunes. In its current form, unmodified, you absolutely want a high pressure (4350 psi) capable fill source, as filling to only 3-3.5k will provide quite lackluster shot counts compared to whats seen here. No appreciable baffling/moderator within shroud. Possibly lower quality parts through-out that would benefit from replacement/reinforcement.



I would recommend these in a heartbeat for an entry level, or tinkerer gun. If they had just given the rifle a good plenum and a valve buffer to help the es, this thing would be valued at well over 1k and still be able to sell for sub 400...ah well maybe the next iteration...but as far as this one goes for 300$, I approve.


 
ES not great on all but the power tune (imo) but easily remedied with some customization by means of buffer.



Power tune (not really a power tune per say, just another tune imo) with the best ES of 17 fps has an efficiency of ~1.25 FPE/CI...not shabby. Need to know its true plenum volume to determine exactly what that is...I guessed at around 7 cc's total plenum volume. At that power level (42 fpe), with the barrel length this rifle supports (22.75"~), and the pressure it was shooting at (2700 psi), well, in respect to that, its quite bad....but thats due to that incredibly small plenum volume that likely sees a pressure drop of well over 1000 psi during its shot cycle...as opposed to one that is twice its volume seeing only 500 psi, or quadruple its volume while only seeing 250 psi drop (much more ideal)...


Ultimately, that pressure drop equates to much less average pressure at both the valve seat, and behind the pellet as it travels down the bore...its detrimental to performance to have such a small plenum volume...such a feature rich gun to have failed there (imo).



The good: Ultimately, you are getting a lot of gun for 300$ with this package. Large range of adjustments, some of which unheard of at this price bracket. 4350 psi rated. Side lever.



The bad: Small plenum (way small) which is severely limiting on lower pressure tunes. In its current form, unmodified, you absolutely want a high pressure (4350 psi) capable fill source, as filling to only 3-3.5k will provide quite lackluster shot counts compared to whats seen here. No appreciable baffling/moderator within shroud. Possibly lower quality parts through-out that would benefit from replacement/reinforcement.



I would recommend these in a heartbeat for an entry level, or tinkerer gun. If they had just given the rifle a good plenum and a valve buffer to help the es, this thing would be valued at well over 1k and still be able to sell for sub 400...ah well maybe the next iteration...but as far as this one goes for 300$, I approve.


Hello,

I tilted that chart a power tune as it shows all the power the .22 has to give. I was excited about 42... 25 ish is all a .22 needs to be good, and 42 with the JSB Redesign was down right wicked.

In my experience, an ES of 25 ish has always been plenty tight for 100 yard work... will be interesting to see what this one does, perhaps 30-35 ish will be okay too. Can't wait to see.

Steve






 
just waiting for AEAC's review to come out. Looking for a low powered gun, so thinking about one of these in .177 and tuning way down. The thing that keeps me from cheap guns is the trigger. The original Fortitude was an 8 pound pull, even after Crosman's fixes, 4 pound or a bit more. I don't need an 8 ounce pull, but please, just a couple pounds and it looks like this one comes in at about 1.5 pounds. Not bad!



Now, the question really becomes, how long before PA gets them in stock.
 
Assuming the plenum is roughly 7 cc's (all volume from regulator seat to valve seat), and at 2700~ psi the Avenger's peak fps with 25.4's in .22 cal is 880~ (I am uncertain of this exact number due to plenum volume and port size being assumed here)....then increasing the plenum volume alone to 21 cc's (3x) will bring its peak up to roughly 980~ fps...to hit that same fps with the 7 cc plenum, one would have to run the regulator at roughly 3650 psi (not even sure it goes up that high in stock form, this is just an example on plenum volume vs pressure)...Alternatively, to hit the same 42~ fpe using a 21 cc plenum, one could drop the pressure from 2700 to 2000 psi..meaning you wouldn't need those high fills if one cannot fill much beyond 3k reliably, and still have a nice fill range of 1,000 or so psi..or fill to 4,350 and have 2,350 psi fill range which would boast an incredible amount of shots even with only 180 cc's in volume.



Hence why I stated, 42 fpe isn't really a power tune 'per say' in the grand scheme, but in the sense of the rifles current configuration, sure. 'Peak' is probably a better suited word. For example, a 10 inch barreled .22 cal may have a peak of 700 fps, and tuning to 680 would be roughly 97% peak...that is by no means a 'power tune' except for that gun, but it by all means is a tune that is 3% knee, or 97% of peak.



To keep your spread under 1" (common kill zone and coincidentally 1 moa at 100y) one generally must keep their spread down under 2%. Hawke/sterlok and my personal ballistic software do a great job providing the data to support this. A 3% spread would be good out to about 75 yards prior to exceeding that 1" spread value due to the variance in fps alone...at least according to these calculators. If you get real world differences that disagree with them then that's great, but I have found their calculations fruitful in my time shooting.



Just my 2c. Love your content, channel and contributions Steve.



P.S. The person who creates the most robust, aesthetically pleasing after market plenum with the most available volume, will certainly be making a few extra bucks.


 
My only trepidation about buying this rifle is it's a Gen1. Typically, Gen1's of ANY rifle manufacturer have issues. But they take time to manifest and get publicized. I'm genuinely interested in the rifle. I actually put my name on the Pyramyd Air waiting list for when they come in. However, I think I'm going to give myself 3 or 4 months before I purchase this. That way I have a nice period of time to get feedback from people who purchase the rifle. I'm going to look for consistencies in issues. If you have a dozen owners complain about the same thing, then it's a design flaw, and it needs to be addressed. 

"A wise man learns from his mistakes, but a wiser man learns from the mistakes of others."
 
I'd actually like to see Stephen from Air Velocity Sport get a hold of this rifle. Just like the Gauntlet and the Liberty, he would reverse engineer the rifle and figure out a way to improve upon the performance. He typically goes above and beyond tuning the gun (which I'm certainly a huge fan of tuning a rifle), and he breaks into the regulator and other mechanics. Stephen, if you're reading this, are you considering buying one of these and tearing into it like you did with the other two aforementioned rifles?