I was inspecting some of dad's old hand-loads and I notice all his primers had a drop of shellac to seal them to the brass and most of the boolits did as well. Most of his cartridges that I am shooting were loaded by him at least 30 years ago and they still go bang just fine. But in my recent entry into hand-loading I have not seen this mentioned so a few questions popped up:
Is this still done?
Is it necessary?
Was it ever necessary?