41 magnum man,
I think you are on the right road now, just be very careful as you work up a load. 10 at a time.
You will see the group get smaller and larger as you change powder amount.
It will also start to show when you get to the higher pressures.
So just find a good medium load to reload that groups well. 3" is good.
When you get better at doing this then you can start to tinker with higher loads etc..
Good luck, Keep us posted.
Forget about the jokes for now.
I think what some are trying to tell you is reloading is very methodical...
A personality that is not methodical at the time of doing this will mess up.
Getting hurt with this stuff is not good, nor do those who take it serious appreciate. IMHO
Responsibility, begets responsibility.
Follow the books advise regarding everything, it will become clear as how to do it and why. You just had a hiccup, and will do fine I figure.
Some will throw the loads (medium is fine), others measure it and weigh every single one (hotter). Starting out I'd get into a certain pattern that will help you not make mistakes later. If you are not sure, read the book again.