I just purchased an Empire Axe. Upgraded it to the Redline board and the XSV bolt. I have about 3000 shots through it so far.
I was using the tuning method sticky thread and started it out at 160 output pressure. Turned the velocity out to 1.5 turns and was getting just over 300 fpm +/- 15. I lowered the output to 140 PSI and was getting 285 fpm +/- 15.
I'm still getting a little kick but not bad. Not as smooth as I was hoping.
The bolt sticks a little compared to the stock bolt. Is this normal? Will it smooth out over time. Say after 5-10 cases of paint?
Also I broke a few balls. I was slightly underbore. Brittle paint for sure.
Can I expect this to improve over time so that I can drop input pressure to a lower value? I know the gauges aren't 100% accurate.
As the gun, regulator, spring and orings break in..yes the gun will continue to smooth out and the +/- fps will clean up as well.
If you continue to break paint try the long spring and upping the dwell.
Lastly, you can help prevent bolt stick by lubing the bolt tip.
Pretty much, the settings that your at now are pretty good by the sounds of it. After a few cases it should feel very nice comparing to stock. You won't be able to really fine tune it until things break in.
Dust Black Axe w/ white accent
14" Freak Kit
Spire with CrownSF
Crossfire 68/45 w/ Stealth
Not necessarily, mine showed an improvement after 1.5-2 cases, but after 3-4 cases is when I got the efficiency numbers I was looking for. Plus once the reg breaks in your Axe should be +/- 5-6 fps. Breaking in the reg is the longest process of the entire equation.
Also, add a couple drops of "paintball approved" oil to your reg after 3-4 cases, this will help keep the seals in the reg in proper working order and help keep the reg consistent.
Where do you live ? We use Empire Custom Blend (basically Formula 13 with a custom fill) and it usually measures out to a .682 in the am, .685 in the afternoon, so with your barrel you are more then likely overboring and getting barrel breaks. I live two hours away from RPS, so our paint is always fresh when we get it.
Breaking in you should always use paint as you won't be able to tell what your shooting at without chroning in between. Once you get 3-4 cases through the gun, then start fine tuning your gun.
If you're shooting Evil this time of year, you'll get breaks. I don't know how cold it gets in ATL but the shift in seasons means there's changes in air pressure and temperature, which both affect paintballs.