Ran across these by accident, looking for one thing and something else piqued my interest enough to check it out, so I spent some time watching the two 300mag vids. Not necessarily a beginner's session, but well enough explained and visual enough to help in tool choices, in understanding what foibles there may be in the choice of gun you buy and the things that you discover in reloading and shooting. This one is about his experience with a TCR in 300WM, he has another one about the same gun in 6.5 Creed which I haven't watched yet.
https://www.youtube.com/watch?v=g33otalNvtg&t=4s