pmr velocity

[chris w]

well i went to the chrono, shot a few time before checking velocity, something like 260fps, then shot again 240 (ish), 280(ish), 250(ish)etc...

really irratic (if thats how its spelt )

iv maybe shot.. 7-8 cases through it if it helps, even if it isn't broken in wouldnt still be so irratic would it?

errrm, help

chris

 

[Ali]

was it like that before??? or only now?
if its only happend now.
strip, clean and lube the bolt.
Strip, clean and lube the reg.

 

[slam]

Change the battery?

 

[chris w]

battery was brand new.
iv cleaned/lubed bolt, cleaned/lubed reg, just need to chrono now.
anyone know how many turns out from all the way in the velocity adjustment thing is? (seat housing) apporiximately?

for about 280fps

 

[Rellizate]

If you have air, do it by sound. If you don't... I'd suggest you just leave it.

Also, the most likely cause was the reg btw, if you ever get it again.

 

[anonononon]

this problem is in the pmr manual and tells you how to solve it..if you have the manual?

 

[chris w]

yeah iv checked the manual.
cant seem to find the leak, its coming out of the back of the bolt, the bolts been cleaned, and lubed as normal.
i know its from bolt because when i put my hand over it, it changes sound.
iv changed all o-rings etc.
argh
any dye techs or people who are good with dye/proto live around me fancy earning a 10er lol? (if its fixed)

 

[Ali]

PM manners87, he'll probably know whats wrong.

 

[manners87]

right bud. take the bolt out. check the orings. wanna make sure that all orings are clean and with out nicks. by the sound of it you either have worn orings or something is preventing the seal. is air leaking from anywhere else?

second point of call what type of battery you got in it?

also if you turn the inline all the way out and then work from there over chrono you will find that you can go right to the point that will keep you at 280 fps.

another thing to check is the dwell settings on the board.


REMEMBER you have no lpr on it so watch out for turing it too high! i did that wrong and its a whole new gasket then.

as general as you like but hey.

hope this helps.

 

[Ali]

the words of wisdom from manners there