All my PCP's have squeaked when being filled, I just presumed that was normal, I used a stirrup pump though so maybe it's different with a bottle...
.22 S410...
.22 Webley Xocet...
.22 HW95k...
[QUOTE=Murphy;7287540]So is mine! [/QUOTE
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I thought something was up when i filled mine off the bottle as it never made a sound with the pump but nothing to worry about.