I have received a follow up with Jeremy. He's trying, and I'm trying. At the end of the day that's all anyone can do. See picture
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I noticed with my .510 TX2 34 inch barrel it only makes power with heavy slugs.they all shoot pretty close fps range 450 grain 820 fps and 650 grain 750 -800 fps and 300 grain at barely 900 fps...Id say the only way you can make the foot pounds you need is to shoot 500 grain .457 slugs...Lee has a mold for .458 500 grain spire points for $40.00 pure roofing lead dollar a pound...I wanted that valve for my 650 grain spire point boat tails shooting max settings for 900 to 1000 fps,.. The higher pressure seems like its olny worth it shooting the heavist slugs per caliber...IF your not happy with the valve i might be interested it itI forgot to mention he had me remove the barrel completely and machine off 3mm of the carrier tray before installing the valve. And, I'm glad he did. It saved me from having potential top hat failure from contacting the loading tray. I want to be clear that I'm in no way discrediting Jeremy, or African Air Ordinance as a company. I think it's a great place for high end, high quality, modified parts. He's been very accommodating with his responses and customer service care. Maybe I just got a lemon. I expect to hear back from him tomorrow with the time difference between us and South Africa. My only complaint, and I use complaint very casually, is he had me do quite a bit of fine tuning and modifications on the new valve for minimal increases. When you're 100 FPE off the potential mark (per his estimated numbers via the video link) it seems redundant to fine tune without addressing the elephant in the room. I'll be back tomorrow with an update. Thanks to all of the AGN family for your feedback.
I'll be testing with 365 max on the weight. If it doesn't do what I need id entertain selling it. ThanksI noticed with my .510 TX2 34 inch barrel it only makes power with heavy slugs.they all shoot pretty close fps range 450 grain 820 fps and 650 grain 750 -800 fps and 300 grain at barely 900 fps...Id say the only way you can make the foot pounds you need is to shoot 500 grain .457 slugs...Lee has a mold for .458 500 grain spire points for $40.00 pure roofing lead dollar a pound...I wanted that valve for my 650 grain spire point boat tails shooting max settings for 900 to 1000 fps,.. The higher pressure seems like its olny worth it shooting the heavist slugs per caliber...IF your not happy with the valve i might be interested it it
If I sell the MOAV Valve I'll also be selling the magnum spring and heavy hammer. The set was $692 with tax and shipping. We can discuss all that in the event it turns out it isn't for me. TYI'll be testing with 365 max on the weight. If it doesn't do what I need id entertain selling it. Thanks
Just a friendly note that I have a great deal of experience with the AAO valve, springs and hammer.
Pro: Power gain
Con: Expensive, finicky tuning, and I've experienced three top hat failures. Air is an issue at 4,500psi, using a 7ltr tank filled to 5,000psi you will get one fill on your rifle before the 7ltr tank drops below 4,500 psi.
Please check out my post on "How to tune your rifle" In it you will find an attached spreadsheet with real world numbers on the AAO performance.
Regarding the AAO hammer, spring and performance. Trash the idea of using the magnum hammer due to severe a lack of tunability (heavy hammer is very long and only provided max power). Running the magnum spring with factory hammer works way better.
1. Pre AAO and post AAO yield a FPS gain of roughly 80fps, with greatest gains seen when using heavy slugs.
2. Pre and post AAO spreads went from under 5fps to greater than 10fps.
If you have not read my post regarding how to properly tune for max velocity, please take a look and download the test sheet. You will find your rifles max velocity if you download the doc and follow this guide. I also recommend removing the heavy hammer, but do what you will and follow the guide, you’ll be happy with the results.I'll be testing with 365 max on the weight. If it doesn't do what I need id entertain selling it. Thanks
Hey, a quick question. After I take a shot my striker sear doesn't re engage when I recock it. I can loosen the 2 screws on the trigger group plate and it clicks and resets. I've looked at the 3 springs, trigger sear and striker release sear. Everything looks fine. But, I shoot and the handle doesn't recock the rifle. It fixes itself, kinda but not until I loosen those 2 screws. One under the grip and one in front at the forearm. Any thoughts? ThanksIf you have not read my post regarding how to properly tune for max velocity, please take a look and download the test sheet. You will find your rifles max velocity if you download the doc and follow this guide. I also recommend removing the heavy hammer, but do what you will and follow the guide, you’ll be happy with the results.
Thread 'How to tune your AirForce Texan for max velocity with very little waisted air.'
Airforce - How to tune your AirForce Texan for max velocity with very little waisted air.
I frequently see airgunners talking about the confusing subject of tuning the Airforce Texan, so I thought it might be helpful, if I shared my process for "How to tune your AirForce Texan for max velocity with very little waisted air." Please understand that tuning your rifle for velocity is not...www.airgunnation.com
Brother... I know the problem you're facing and the fix is simple. I experienced this exact same problem myself... it stumped me at first, but I quickly got through the issue and everything returned to normal. Unfortunately, this happened a while back and just can't recall what I did to correct the problem. I really want to help, but I cannot recall what I did to fix this issue and as soon as the solution comes to me I'll post info on what it was and how to correct it. Also, If your comfortable removing the auto-reset on the safety, try that first.Hey, a quick question. After I take a shot my striker sear doesn't re engage when I recock it. I can loosen the 2 screws on the trigger group plate and it clicks and resets. I've looked at the 3 springs, trigger sear and striker release sear. Everything looks fine. But, I shoot and the handle doesn't recock the rifle. It fixes itself, kinda but not until I loosen those 2 screws. One under the grip and one in front at the forearm. Any thoughts? Thanks