Someone once told me that it’s possible to push up the power of a Walther LG55 simply by swapping out the spring for a BSA Meteor one, giving 11fpe plus.

I thought this was crap and maybe it could make 8 fpe but no more. If it could do 11 fpe then it would have been a supreme FT gun in the late 70s and early 80s.

But it weren’t.

Anyone tried boosting the power of these 10m target guns?