No. Well behave tuned guns with modern well fitting seals and very little lubrication.Originally Posted by piggy589
Ive seen, or heard it several times now- a recent example is a full power (Norwegian full power, FAC to you) HW77k.
Little noise with the original spring, but a bit to lively, even with fitted guides. The gun makes somewhere around 13-14 fpe in the origginal format, I dont remember the exact figures.
I fit an after market spring on tight guides, and set preload with a delrin washer to give about 11fpe.
Suddenly the muzzle blast increases dramatically. what is happening? piston bounce?
I have had it happen with other guns too.
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