Reply To: Increasing hammer spring tension on the Crown

Forums PCP Airguns Increasing hammer spring tension on the Crown Reply To: Increasing hammer spring tension on the Crown

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wolfie
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Stoti hi,

Right my Crown .25 was shooting Kings 25.39 890 fps average with e/s 13 s/d of 4.1

King heavy Mk2 avge 816 fps s/d 4.1 e/s 13. 

130 bar reg as set by Importer for 25 grain Kings. So so accuracy which I put down to me.  Wanted to shoot heavies at 110 yards ( 100 metre range here) 

So on/off stock hst and Safety. 

After 1 turn heavy 824 fps average strip down hst 2.5 turns, still slider able to move freely about 12 mm

Chrono now with Heavy mk2 – 829 fps average, e/s 33 s/d 13.1. Max 849 fps ?? 

Another strip down.

 Tightened the b….y m3-10 machine screw too much result allen head strips. B…r. Started to drill it out as those screw remove sets won't fit.

Having to buy more of those  M3-10 machine screws. Clearly non intended to be on and off much.

Oh and reassembling , stock made contact with regulator  plastic cap which popped out. Are they glued on or just push fit. Fragile anyway.

Cannot test more yet but  looks similar to your findings.

Assume have to now fiddle with reg pressure.

 

safe shooting