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Valve spring

July 17 2012 at 10:48 AM
  (Login tkerrigan)
from IP address 166.250.13.98


Response to .308

I've had luck getting more shots out of my corsairs by lightening the hammer spring and making the valve spring heavier. I get about five shots in the 800fps range from about 2500 psi to about 1600 psi with 79 grain bullets. It can be shot at higher pressures, but the velocity starts at about 400 at 3600 psi, a little valve lock but lots of shots. I did this last year and haven't gotten back to it, so figures may be off a bit due to old guy's memory. Regards, Tom


 
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