I tested my air dropped WW+2% tin 9mm bullets for hardness and got 11.8 Bh.
I then baked them for 1 hour in my powder coat toaster oven at 450. This oven doesn’t actully lingers between 425 and 450 back and forth, at that setting.
When done I quickly water quenched in a bowl of water. The results show the bullet actually got softer, from 11.8 to 10.4. Am I supposed to wait a certain amount of time? I tested once bullets was cool to the touch.
What happened?