VERY Inconsistent Velocity

[rikkter]

i'm wondering. when i tip my gun sideways while chroniing when i use my short barrel. the velocity jumps way up down, up, etc. i mean like, i went to a speedball field and it was going 250, 340, 270
i was like what the hell. so was thinking it was the regulator seat. changed that with a new one. was doing the same thing. BUT heres the thing, when i turn it right side up. the velocity is way way better. like 280, 280, 283, 281
why? maybe the regulator pin and valve is little off or something?
help.

[HIKARU]

riooso,

riooso, I'm going to try that .. I am currently using the medium spring, so I will switch over to the smallest spring and see how it runs.

Have you chopped since you changed to the smallest spring? Please say no..lol.

[riooso]

I have an Extreme so I am electric with an eye, so I won't chop. Just try it and see what happens, I crono at 285. My brother and I both got markers at the same time and they both did the exact same thing. Thinking that it would be possible to trim a spring to be a little less than the middle. I really need to put a ball in the breech and see if I can chop it. Let me know how you make out.

R


I had the opportunity yesterday to trim down a "middle" spring and found that if I trimmed off about a 1/2 inch, not total length but along spring, that my velocities are very good and I have a lot "softer" bolt. I have the loosest carrier that I can put in and not leak. I understand that if you have a carrier that is to tight it grips the bolt and causes velocity problems.