and you'll have a headache for about 2 weeks.
I probably read that portion of the book 50 or more times, at least enough times that the binding was wearing through and the pages were falling out.
it still took a while for things to sink in and make sense.
Popper has put some links up on the site here that have made me sit there and think things through for a couple of hours too, but after looking at them and reading and re-reading things it started sinking in even better how the different alloys were working.
not just how they come from the mold or how they reacted to being heat treated.
but being able to predict and think through how they would react under pressure in the rifle.
it's not always clear what a high or low BHN alloy will do unless you break down each constituent and then put the pieces together.
just because an addition acts one way on it's own doesn't mean it will act the same way in the presence of 1 or 2 other additions or with quench cooling when it's subjected to pressure, flow, and rotational stress.
then the amount of it in the alloy can allow it to act in a whole other way [depending on the amount of other additives]
a little is good so more must be better is well,,, sometimes not true and sometimes it is.