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True, that is what I read, peak pressures have to be dropped down to around 50kPSI for no sizing to be required at all, but once that point is found brass life becomes a non-issue. Contrary to my...

Tight groups are always interesting, but I don't understand your set-up from your post. Chamber neck dimensions for 'no-turn' are usually around 0.004" more in diameter than across the neck of...

I came across a description the other day of chamber reamer dimensions at the neck ground to allow fired cases to be reloaded without any sizing whatsoever, something along these lines: the chamber...