315 FPE – HomeBuilt AirGun – Testing & Tuneing
I have been testing and tuning on my 9MM Home built air gun.
Bored out the valve until it will just open at 3100 PSI.
It used to open just fine at 3600 PSI.
Now it will push a 150 grain .357 slug @ 973 FPS with 3000 PSI
That gives 315 FPE !!!
It still gets 892 FPS for 265 FPE @ 2000 PSI
The 48 Cubic inch tank gives 8 or 9 shots
The .357 slugs are soft cast and sized to .352″.
Check out my new chrono setup.
Its designed to prevent chrono damage.
The gun is held by two delrun plastic clamps.
It has two lightbulbs for illumination and the top hinges open,
There is a spot to pile up wood to stop the pellets / slugs.
It has a 1/4 inch thick, aluminum, ultimate backstop.
Check out the 150 grain slug that hit the aluminum backstop.
It is well mushroomed!!!!
I have a new 26 inch barrel ordered for the next gun.
It will give me another 9 inches of barrel.
Maybe i can get the new gun up to 1100 FPS for 400 FPE???
Mark
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I have been testing and tuning on my 9MM Home built air gun.
Bored out the valve until it will just open at 3100 PSI. I also try Viagra Online for my other gun and is great
It used to open just fine at 3600 PSI.
He built it and killed some dear with it.
I think he is working on another project currently
Oh goody, that means the 9 mm might go up for sale, maybe ❓
Did he custom make that barrel?
Mark is here all the time.
He built it and killed some dear with it.
I think he is working on another project currently
I stumbled upon that post when I first came to this site…and I have not heard anymore about it. I often wonder what ever came of that fine looking 9mm. Man I love that barrel 😈 Anyone know anything about it????
Just awesome !
Congrats on a fantastic project 😀
😀 rifle, pistol, or shotgun which fires projectiles by means of compressed air or other gas, in contrast to a firearm which burns a propellant. Most air guns use metallic projectiles as ammunition. Air guns that only use plastic projectiles are classified as airsoft guns.and also let me tell yall Generic Viagra this medicatin will leave you like a rifle 😀 8)
how do u put up with the outrageous recoil? seriously i seen the video and its a beast! you must still be in very good shape taking that kind of punishment 😆
What can officially make a non-electric paintball gun capable of shooting burst or auto? I plan to get the Tippmann 98 custom and heard from a friend, who also has the same gun, that he plans to buy something that can make his gun fire in bursts and in automatic. What is this object if there is such a thing?
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Then you can make one for the rest of us, peace out!
look forward to seeing it go together.
Thanks guys!!
My 26 inch barrel came in today. It went streight into the lathe.
I allready have most of the lower gun built – all the trigger components and lower trigger housing.
Another two weeks and i’ll be ready to test the new gun with the 26 inch, .357 barrel.
This gun will compress the hammer spring .4 inches more than the last gun, so I should get a bigger hammer hit. The bigger hit will allow the valve to be opened up another notch.
This one will have a bigger valve opening and a 30% longer barrel, so there should be more power.
I gotta order one of JDS’s 53 cubic inch tanks for this gun.
Mark
300 + in 9mm awesome !
Man that has some real power 😯
realy good numbers on that , i imagine you’r squeezing every drop of power posable to drive that , havent seen any higher results from many 9mm hpa guns .
the barrel is only 18 ” , thats the most impresive part for me .
good job .
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I am ready for a full conversion to 308 for the Condor. Is anyone doing that yet?