Bad Ass Wallace
05-04-2022, 07:30 PM
So, you have made a batch of boolits and tested them to be perfect and accurate! They weigh 202.6gns and are sized to 0.310". I use them a lot and need to duplicate the alloy at some future time & place.
https://i.imgur.com/Ue5Xjhmm.jpg
The method that I have adopted is to cast 10 'perfect' boolets from pure lead. Let's say that a Lyman 311284 will cast a boolit in pure lead that weighs 211.4gns. Finally you get a good boolit that is accurate and works; it weighs 202.5 gns. In the future to duplicate the alloy, follow the same proceedure start with pure lead and add tin and antimony until the new casting weighs 202.5gn.
If you divide the finished weight by the base rate 0.9773 (I calculate to 4 decimal places) you will be very, very close to the came alloy composition.
https://i.imgur.com/Ue5Xjhmm.jpg
The method that I have adopted is to cast 10 'perfect' boolets from pure lead. Let's say that a Lyman 311284 will cast a boolit in pure lead that weighs 211.4gns. Finally you get a good boolit that is accurate and works; it weighs 202.5 gns. In the future to duplicate the alloy, follow the same proceedure start with pure lead and add tin and antimony until the new casting weighs 202.5gn.
If you divide the finished weight by the base rate 0.9773 (I calculate to 4 decimal places) you will be very, very close to the came alloy composition.