NOT KNOWN DETAILS ABOUT WALTHER SHOOTING

.. I still have not attempted out the P22 with a long barrel and no "compensator", and I have not shot my have guns in over two months (the PPS is over a lint-accumulating mission, no cleaning or lube for one more month or so and we are going to see how it operates with EFMJ and Gold Dots!).This could not harm my 60 yr outdated barrel now, will it?