[IshKebab]

This is great. My video tips:

1. Edit it down. You need to be brutal (it's painful) but you can start off with the less painful low hanging fruit. E.g. there's no need to mention health and safety at all. You don't need to justify using a PSU. You don't need to explain significant figures or accuracy vs precision in detail. Your audience is interested in technology. You can just say "it doesn't matter if the sights are off as long as the grouping is tight". The video could probably have been 1/2 the length. Easily 2/3.

2. You're a little monotonic. Sorry that's not a nice thing to say and tbh I don't know what you do about it. Tighter editing might help. Also maybe more improvisation of the script?

Anyway I subscribed. Good luck!