Big bore valve vs normal pellets
Hi guys I am new to this forum, and I am myself a cnc machnist and from Switzerland, I am a big fan of the Airforce guns. And I am a longtime reader of this forum, but was always voicless, but since a while a question is in my mind, and I saw here are a few guys which have highli tunend condors, and I wonder what kind of velocities they can get out of a 15 grain pellet in 177 or .22. I am almost certain that there are some physical restrictions in the medium itself (air) to propell something faster then the speed of sound in air with air. What is the highest fps which could be achieved by an airgun with light pellets.
happy shooting to all of you.
Josh
All Replies
Viewing 5 replies - 1 through 5 (of 5 total)
Well with big bore valve i mean a valve which has a bigger innlet body for mor air. Ok tank dump, i think thats not a problem, to solve that just install a closing spring like the 177 condor high flow valve has.
I have gotten 14.66 and 16 gr 22 cal pellets up to almost 1300 fps but it was a huge waste of air. only did it to see how fast I could make them go when setting my gun up for power.
And yes beware of tank dump. scary $h!t the first time you have it happen.
I think a big valve with small calibers can cause a valve dump effect.
hi Josh. welcome mate
i do not have much experience with .22 but i can shoot 16.2gr jsb beast at 1180-1200. i know they are accurate pellet in my condor i got my best group doin around 900ish. my .177 hatsan bt65 can shoots them very very accurately at just below 1100fps. even if i tune it down to 750ish for shot count, its still very accurate. maybe my lw just being picky
and what do you mean by big bore valve? to shoot .177/.22 pellet?
Viewing 5 replies - 1 through 5 (of 5 total)
- You must be logged in to reply to this topic.
What kind of mods have you done? And on which pressure you ran the tank? I am thinking whe you attach a 4500psi bottle and a heavy hammer and a spring which closes the valve after the hammer stiked it it could work. I want something like 16-1800 fps Ive made a gun with a 1:9 twist barrel to shoot longer more suitable projectiles for supersonic speeds. I callculated the bulllet would stay abot 70-80 yards supersonic with 1400 fps at the muzzle. The bullet which I have designed have a bc of rughly 0.15 at that speed. That would make a hell of a flat shooting round. It should shoot out to 90 yards within 2 inches. Thats my goal. Oh the bullets which ive designed are 177. Cal.