Bump
There are great vials and they pass the field test. They're waterproof, the caps are very secure, and they only take half a twist to remove. I used hot glue and clear shipping tape to make speed loaders. Put two primers in a couple vials and you'll have spares in case you fumble one.
*** Order extras because you will find other uses.
The empty vial contained the load I used to shoot my buck this year.