Testimony: I have to give credit where credit is due! I ordered some powder tubes from Lane a few years ago they have worked great but never really got put to the test until recently lol I had a bunch of powder weighed out in Lanes tubes stored in just a cheap cloth camo fanny pack, my wife decided that was a item for the back deck 😅 it laid out for a week in the rain, dew, hot sun, everything. When I found them I figured it was all ruined being there was condensation all over the outside of the tube. Well instead of throwing it all away I figured why not test it out....? I shot several tubes of the powder I had in the tubes that set outside in a wet cloth material bag for a week straight and never had one issue!!! Each load had zero delay, and consistent velocity around my usual 2700 fps so thanks for providing a quality product!!! JB