I've heard and read that this non external electric source of ignition is not reliable in the mountains - high altitude. I haven't read what is meant by "high altitude" though. Yet there are plenty of
items sold in the camping world that rely on this method.

So, what do others here have to say based on their experiences or other studies?

Last edited by bigwhoop; 09/02/13.
My home is the "sanctuary residence" for my firearms.