so i was swapping batteries in my grand and wanted to see how the switch worked. I was watching the firing pin make contact with my battery then saw a tiny little spark. did it a few more times to see if it did it everytime and it did. I'm running 28g kanthal twisted with about five wraps. ID is about 1/8 maybe a tiny bit bigger. resistance coming out to .5 (my reader only reads 0.0) what would be causing the sparking?
