1/2" bore 3/4" copper coaxial musket
just some damage pics
@500psi number 0 sinker at about 6 mtrs into 12mm marine ply and 2 sheets of thin steel, went trough the ply and one sheet of steel almost through the next





i have had some problems with my sealing face (and the backing washer) i have tried a new sealing face and a steel washer as the piston fling back bent the washer slightly concave after awhile
@500psi number 0 sinker at about 6 mtrs into 12mm marine ply and 2 sheets of thin steel, went trough the ply and one sheet of steel almost through the next





i have had some problems with my sealing face (and the backing washer) i have tried a new sealing face and a steel washer as the piston fling back bent the washer slightly concave after awhile
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