Guns, Dogs and Blades QnA

So I need a bit of help from those of you that cast lead. I have aprox 300 pounds of raw lead, hardness unknown. When I was younger I would use wheel weights then cold water quench for hardness. At that point having zero knowledge of Brinell. Barrel didn’t lead I was good to go. Back then just a budding pistol guy competing against folks like Bill Wilson etc. No real idea what I was doing, lots of raw talent with no real thought behind it. Forward thirty or forty years. I want to test for hardness and modify my raw lead accordingly to achieve brinell as required. Note to self, antimony and tin are pricey, but required to make raw lead more suitable for shooting. Clearly rifle rounds need to be a bit harder but I am casting primarily for pistol. This is my very long winded way of asking do any of you guys use a brinell tester and if so what brand and model, and do you like it? Thanks in advance for any suggestions!