|
Only neck turning or reaming will 'remove' donuts but you would more likely have a case head seperation before any donut forms in normal reloading practice. Donuts are primarily a result of case reforming, specifically involving necking up to a larger bullet diameter.
Donuts don't matter anyway unless the seated bullets extend below the neck and, depending on it's thickness and your chamber's neck diameter, it may not matter then.
|