Interesting discovery regarding air leaks
This isn't for everyone, but the info is interesting for all airsofters/gun techs.
Often times this year when shooting my CA M24 I've found my shots had veered off to the right after about 150-180ft, making things pretty frustrating. Obviously I attributed this to wind, as anyone who watches the flight of their BBs travelling own range.
Just within the past hour I've been toying around with my M24, sorting out what mods and tuning to do over the winter for next season's games. I have a worn out Laylax 150SP spring in it, it's shooting right now (after two years of use) in the ballpark of 470-480fps with 0.20g BBs. This really has nothing to do with my "discovery" however.
I decided to check for sealing between my nozzle and the hop up unit/rubber, I fired up my Streamlight Scorpion, held it in my magwell, and with an empty chamber (and eye protection for those wondering) saw a decent amount of light shining through on the right side of my chamber. I loaded a BB in to check again, same thing, light passing the right side of the BB.
While this is an airleak, here's the interesting part. I sorted out what effect a leak on one side might have on a BB. It's the air leaking on the right side passing the BB and the higher pressure on the left side of the BB that is causing my rounds to have that slight hook to the right after a certian distance.
In my case, I have to adjust the two screws on either side of the hop up unit (the screws secure........ and now I find out center........ the inner barrel) to get rid of that imbalance of leakage/pressure.
Figured I'd post this for the sake of interest, if you find your BBs hook at a certain distance repeatedly, check your inner barrel to make sure it's properly centered, hop up rubber is instact, clip that holds the inner barrel to the hop up unit is intact with no cracks (this causes large fps droppage), etc.
|