kansamaniac

I am new to making my own darts and I am struggling with measurement specifics. My father is a craftsman and I have access to a mighty and powerful shop however I need some more detailed specifics to start making my own slug darts. Below you can find my questions, and it would be awesome if you could answer any that you understand.

1. I have googled extensively but I do not know what #8 sized washers' dimensions are, so what are the exact measurements for number 8 washers?

2. As far as the felt tips goes, what dimensions should I have in that department? (and if you know, where could I find these?)

3. Foam Backer Rod, this plastic devil has been incredibly difficult to find not on the internet and I also have no idea as to the dimensions for that. Please fill me in.

4. Just a kind of shot in the dark question, has anyone ever tried using epoxy instead of hot glue?

Alright thank you to anyone who answers!

-Kansamaniac.