I have a couple of the type from Cabelas. They work pretty well too, but the Silva one has a threaded closure (which I have more faith in), the other uses the friction of two o-rings to seal the case. BTW, I have one of the brass ones and it's significantly heavier than the aluminium.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.