OUTSTANDING,,!!!!!! Oh,, and the casting too!!!!!
Seriously,, it's good when a spouse can enjoy much of the same stuff we do.
Ok, you now have gotten your feet wet a bit in casting. Good! As for casting "too hot" I'd like to offer that it's better to be a little too hot than a little too cold. I keep my PID controller set to 750 for much of my casting. It's what works for me. But occasionally, I have to go higher or lower,, depending upon the mold & the way bullets drop.
By now,, you should have at least studied the part about "Matching the bullet size to your bore". This is where the sizer dies become very important.
Keep us posted on the final results,, the "proof on target" so to speak.