AGS Custom Parts -

Annealing should be done every reload. This will eliminate the spring back, and give repeatable and smooth sizing.

The primary reason for annealing rifle brass is preventing case-necks from cracking and keeping them in the same hardness range. They will eventually split because firing and resizing cases “work hardens” brass, making the thin necks brittle. Most rifle cases will survive 4-5 firings, and some will last longer, depending on the brand and method of resizing.

Annealing is a process which helps to restore the ductility of the brass. That makes it easier to size and less likely to crack or split, so annealed brass cases can be used many more times before they are in need of replacing.

Yes you can, and we don’t want to do it, because it can lead to dangerous situations, since the brass can get too soft. Common method is to use a chemical indicator in the form of heat sensitive paint – Tempilaq seems to be the most common brand used.

Annealing cases more than once, as long as it’s not still hot on the second go, doesn’t do anything negative.

Its all down to prefference. Double burner setup will anneal your cases faster.