Thread: Resizing inconsistency - Am I missing something

Just remember brass get work hardened with firing and with each firing it'll have more and more springback. One of the main reasons people anneal with a AMP annealer is to get the most consistent anneal, thus the brass will have the same level of springback = consistent neck tension and this is true for shoulder bump as well. You can have the best dies, press etc, but if your brass isn't consistently annealed (or not annealed at all) you will have inconsistency in your sizing process. It might not happen in the start of your brass life but will show itself later after multiple firings.

Just another variable to consider. There are quite a few youtube vids about annealing and sizing consistency

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