I also have been using the cling rap on my side lock for about 25 years and had good luck with it. I seal the cap with a rubber band also if it is real humid I will do the same thing On those rainy days of hunting I usually will unload my gun when leaving the woods then clean it good and oil it before reloading. One thing I also do is fire a couple of caps through it before reloading. Out of all the years I have only had a time or two that it did not fire when I needed.Practice and Be SAFE!!!!!!!!!!!!!!