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Air Rifle Pressure Pcp's


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#1 mgnoco

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Posted 13 September 2017 - 12:15 pm

Hi Guys I am new to the forum.

 

I hope someone can explain whats happening with my S510 PCP.

 

Essentially, if I leave the gun rest for a few days the zero is always off on resumption. Its always shooting about 2 inches low.  But the confusing part of it is after 3-5 shots its nearly back at its original zero. Before I understood what was happening I was re-zeroing and then needed to re-zero again

 

I use JSB Pellets which are very accurate once I get beyond the initial shots.

 

Anyone experience this issue?

 

 


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#2 j j m

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Posted 13 September 2017 - 01:49 pm

welcome mate



#3 Cliff Ray

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Posted 13 September 2017 - 03:07 pm

Sounds like a valve not opening properly so giving less power to the shot. Then after a few shots it has loosened up. How old is it? Has it been "serviced" by someone who used the wrong lubricants?



#4 mgnoco

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Posted 13 September 2017 - 03:17 pm

Thanks for that maybe it needs a service. Not sure of the age I bought second hand I would say no more than 2 years old. I didn't get any service on it and have it 12 months myself

#5 The one

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Posted 13 September 2017 - 08:41 pm

Hello and welcome mate a bit of crap sticking a valve ???



#6 mgnoco

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Posted 14 September 2017 - 07:55 pm

Thanks for the advice guys. I'll try find someone to have a look. I'll keep ye posted.

#7 The one

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Posted 14 September 2017 - 08:54 pm

dont think its the correct answer too over fill it and a couple of shots at over the power pressure and see if you can move the crap , sort the valve ?






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