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Old 08-28-2008, 05:50 PM #1
ilikegunz
 
 
Join Date: Apr 2007
inconsistentcy on my pm7 tried fixing but. . .

Anyway, what the title says. . . .

So this is what happened guys.

I went to the field today for practice. I shot over the chrono and it started with a spiked shot, like at 307, then the second shot would be withing 10 fps of 270. . . .for the next 10 or so shots, it would stay withing 10 fps of 270, then, the velocity would go EVERYWHERE. Like 307, 272, 298, 269, etc., etc.

Now i tried troubleshooting this by relubing my bolt to no avail. So then i upped my dwell by 1, to no avail. Then i upped my dwell once more to no avail. So since that didnt do a thing, i set dwell back to stock (18).

Now i just had my lpr rebuilt two weeks ago and only one case was put thru the gun since the lpr was rebuilt. BUT, im suspicious that i should just change all the bolt orings since that hasnt been done in like 10 cases. Or maybe, should i rebuild my hpr (its a cp)? This hpr is fairly new and only has about 6 cases thru it.

What should i do guys? Should i rebuild my hpr and change all the bolt orings and then if that doesnt work, should i just go for the lpr again?




Btw guys, please dont tell me to change the settings to anything other than stock because last week, along with every other time i used this gun, it was shooting at about 260-270 at +/- 4

Thanks for your input in advance guys. I look forward to making this gun shoot (. )( .) again
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Old 08-28-2008, 05:55 PM #2
QuencyJones16
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You just rebuilt the LPR correct? This is why, the piston seat has to be worn in again. Unless you did not replace then, check your battery.
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Old 08-28-2008, 06:07 PM #3
ilikegunz
 
 
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^^^^^ hey thanks. But are you sure it is this? Because i had some TERRIBLE spikes today. Im talking like +/- 50 on a few shots. I mean, the worst spike i got wen the gun was new was like 20 fps spike. I understand there is an oring on the bolt that causes erratic velocity if it is worn or damaged. Do you thin kthat may be it? Should i just change all the bolt orings? Or, can it possibly be that i have to relube the hpr??
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Old 08-28-2008, 06:10 PM #4
s0c0mnati0n
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check your battery, low battery will make the gun spike alot, like if its really close i have gotten about +-55-70
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Old 08-28-2008, 06:12 PM #5
ilikegunz
 
 
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Quote:
Originally Posted by s0c0mnati0n View Post
check your battery, low battery will make the gun spike alot, like if its really close i have gotten about +-55-70
put in a fresh energizer today man. Im not worrying too much as i know if i actually strip the entire gun and relube, and replace orings, it'll works good as new. Its just that its a pain to have to think about and ive got gpl next weekend and this weekend, im playng a local tourney so.. . .
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"Please keep your arms and legs inside the field at all times. Failure to cooperate with these instructions may result in injury,death, or worse, ejection from the field."
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Old 08-28-2008, 06:25 PM #6
ilikegunz
 
 
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Quote:
Originally Posted by ilikegunz View Post
put in a fresh energizer today man. Im not worrying too much as i know if i actually strip the entire gun and relube, and replace orings, it'll works good as new. Its just that its a pain to have to think about and ive got gpl next weekend and this weekend, im playng a local tourney so.. . .
anybody??? Just a quick answer to my post that im quoting? Please?
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Old 08-29-2008, 01:08 AM #7
Naughty_Dog077
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the reg. have you taken your reg apart lately? if not do so and lube it up, and if yes check to make sure that you didn't put anything in wrong, when I hate this problem I forgot to put the reg seat in so the air was just rushing through.
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Old 08-31-2008, 02:18 AM #8
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Change those orings...
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Old 08-31-2008, 08:17 PM #9
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check the shim stack in your reg...my friend put it in the wrong way and he would spike like crazy
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Old 08-31-2008, 08:24 PM #10
tlmiller
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Quote:
Originally Posted by $_H_()_C_K_E_R_Nxt View Post
check the shim stack in your reg...my friend put it in the wrong way and he would spike like crazy
Happened to my PMR also when I first got it. I thought guy sold me a lemon at first (for the price I got it at, wouldn't have been surprised).
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