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Old 01-13-2012, 11:13 AM #1
Bushwood Bill
 
 
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Pressure for Empire Sniper

Question for you Empire Sniper owners. What pressure is your inline reg set at? Manual says 225psi and fine tune with IVG however 2 Snipers that the shop just got in and both needed to be around 240-250psi and the IVG about 4-5 turns in from flush to chrono 290... Any thoughts? And before anyone asks paint was matched to the barrel back (underbored)..

We called KEE and they said it should be no more than 225psi and IVG 3-4 turns in from flush.
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Old 01-13-2012, 11:44 AM #2
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Were you holding the pump arm forward when chronoing?
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Old 01-13-2012, 12:52 PM #3
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Maybe the gauges are wrong.
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Old 01-13-2012, 01:27 PM #4
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Were you holding the pump arm forward when chronoing?
Yes...
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Old 01-13-2012, 01:28 PM #5
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Maybe the gauges are wrong.
Thats what I thought, but two new guns? I have no idea...
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Old 01-13-2012, 02:19 PM #6
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The difference between 225 and 250 is pretty minimal and might be partly attributable to the gauge... I don't think the absolute psi is that much of a worry regardless.

Between guns sometimes you get some variance.
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Old 01-14-2012, 02:14 AM #7
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There's also a chance you lost a bit of FPS with your choice of barrel back.
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Old 01-14-2012, 07:40 AM #8
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Mine seemed to work best at 220-230 but as stated before those gauges aren't 100% accurate. Out of the box the empire only shot like 240-250 fps so it took some adjusting to get it up to 300 fps
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Old 01-14-2012, 10:01 AM #9
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On all my pumps, I sweetspot them and don't worry about the pressure reading on the gauge.
Unless it is one of the high end gauges (ashcroft) they are usually +/- 10% at least and they can vary gauge to gauge.
I fill HPA tanks at the store that I work at and notice the difference between similar looking gauges and have learned to trust my gauges on my fill station over the tank gauges

Just sweetspot the gun and all should be good. 225PSI is a great place to start and tweak from there.
It is also nice to build a reg tester. I built one out of an asa, slide check, ashcroft gauge, and small muffler from an old CO2 fill station (creates back pressure and makes it so I can actuate the slide check faster)
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Old 01-14-2012, 06:36 PM #10
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Quote:
Originally Posted by egopossum View Post
On all my pumps, I sweetspot them and don't worry about the pressure reading on the gauge.
Unless it is one of the high end gauges (ashcroft) they are usually +/- 10% at least and they can vary gauge to gauge.
I fill HPA tanks at the store that I work at and notice the difference between similar looking gauges and have learned to trust my gauges on my fill station over the tank gauges

Just sweetspot the gun and all should be good. 225PSI is a great place to start and tweak from there.
It is also nice to build a reg tester. I built one out of an asa, slide check, ashcroft gauge, and small muffler from an old CO2 fill station (creates back pressure and makes it so I can actuate the slide check faster)
I did use a reg pressure tester with a Ashcroft guage and the stock guage was off about 5psi however even up to 260psi and the back turned in 5 turns its still only chrono's at 260. Also thats with a tight paint/barrel match..
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Old 01-14-2012, 08:37 PM #11
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Again, the absolute pressure isn't that much of a concern, if it bothers you then you need to respring to meet your pressure goal. There is variance in machining, flow and even spring weights from marker to marker. Some balls are even a little "stickier" in the bore than others.

What is Kee's recommendation as far as matching paint to bore?
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Old 01-14-2012, 09:29 PM #12
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Again, the absolute pressure isn't that much of a concern, if it bothers you then you need to respring to meet your pressure goal. There is variance in machining, flow and even spring weights from marker to marker. Some balls are even a little "stickier" in the bore than others.

What is Kee's recommendation as far as matching paint to bore?
Kee said pressure shouldn't be any more than 225-230 and rear adjuster no more than 4 turns in from flush.. Paintballs should be snug but blow out by mouth.
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Old 01-14-2012, 09:31 PM #13
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Minor tolerance differences can make a big difference.
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Old 01-14-2012, 09:47 PM #14
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Minor tolerance differences can make a big difference.
I'm well aware of that.. However at up to almost 300psi, rear adjuster 5 turns in and no change in velocity, does't make sense.. And tight underbore with paint/barrel..
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Old 01-15-2012, 08:21 PM #15
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Try a looser bore... for fun.
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Old 01-15-2012, 09:33 PM #16
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Try a looser bore... for fun.
Did that!!
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Old 01-15-2012, 11:23 PM #17
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Bummer, man. Sounds like it's broken. Oughta send it to me for destruction.
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Old 01-15-2012, 11:59 PM #18
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Bummer, man. Sounds like it's broken. Oughta send it to me for destruction.
Sure pm me your address!!!
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Old 01-16-2012, 08:42 PM #19
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Mine is at 225 its shooting 277 where is I keep it. I have it 2 turns in. I have not tried to turn it up.
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Old 01-16-2012, 11:36 PM #20
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Mine is at 225 its shooting 277 where is I keep it. I have it 2 turns in. I have not tried to turn it up.
Thats where it should be. Glad to hear yours is shooting good..
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Old 01-17-2012, 12:25 AM #21
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Might just be a pair of duddy springs, too.
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