I am just now getting into casting my own bullets. I have started to accumulate equipment but have not yet cast anything. I will primarily be doing this for military surplus rifles and in the future some blackpowder rifles. I searched through the threads pinned above and didn't find one which explained exactly WHY the seemingly overwhelming majority of people are powder coating their bullets. I have a couple of questions to ask you wizards.
Is powder coating primarily due to preventing leading?
Can I use powder coating only and forego the use of gas check for my mil surp reloads? (54r, .303, 30-06 etc)
Do I need to powder coat round balls and/or mine balls which I may use in the future for BP?
Sorry for the newb questions, I did a short search but there was a lot of conflicting information and thought it might be quickest to just post. Thanks for any info!