Can anyone that has used a similar air tank help me with what max pressure I may be able to use safely?ive had 100psi in it and expect to be able to get 150psi,anything past 120 is unchartered waters for me,also will the compressed air change pressure in different temperatures I'm sure it does but h...

After a bit more testing I found that the epoxy piston had deformed slightly ,now that is fixed its power has increased with the extra pressure.

Seems to be the pilot valve not releasing enough air,it was just coincidence it started doing this when I tried more pressure,I'm in the process of adjusting it so I expect it will have better performance

This is the inside of the pilot mechanism,it's the first one I used but it was sloppy and weak so kept the same concept but used heavier material,reasonably simple drag the copper piston back and slide the lever over in the slot you can see in the half inch copper tube (as the mechanism fits inside ...

Thanks! I'll take photos of the first firing mechanism I made (same concept) The piston is epoxy with thin rubber almost the same as bike tube super glued on! It seems to lack power as pressure gets higher almost like the pressure is holding the piston against the barrel I'm not sure?do you think it...

20mm t piece(home made QEV) 20mm/12mm epoxy piston 6mm/56cm barrel modified air hose coupling(pilot valve) 20/100mm copper tube,housing the sprung piston for the trigger mechanism 86cm timber rifle stock approx 400g benzomatic propane tank(air supply tank) At an approximate 120-160psi it fires 6mm p...

Yep thanks!i almost tried with a nail punch but didn't want ruin a barrel in case it didn't work well now that you've suggested it I'll give it a go!thanks again

This is the feed mechanism go 6mm plastic balls,I need to stop the balls rolling forward out the barrel before I fire!anyone have any ideas?

Thanks!Yeah they were quick pics I took! But I'm hearing ya!im in progress so I'll be sure to post decent pics!ill add a vid aswell when I finish!

6mm air powered rifle,yet to decide on an air tank

Ok,no worries I'm understanding better as I go with your help!i think I was a bit miss guided at the beginning! Thankyou!or I missunderstood a tutorial

I don't think I could get it any tighter!but I'll try a new one!see how it goes!

First test the QEV released all it's air out the pilot valve so I've made a new longer piston,it works fine now,but the whole setup seems to waste a lot of air or it's the blow gun wasting it!hopefully with some tuning it'll be better for multi shots!

Thanks! I'd forgotten to look in there!

I'm tired of breaking bicycle pumps!does anyone have a proven method of building a bulletproof hand pump?