Normally I agree with the Elders of the Reloading thread but this time I don't agree and this is why. Long ago in the days of just two 357 mag revolvers (Ruger Security Six and Colt rooper Mk 3), I had the misfortune of really stuck cases and flattened primers -- sometimes. Started check case length and found that my bought new and fired 6 times brass had grown 0.015" to 0.025" over max case length. Couple of years later had the same experience with 44 mag brass. With considerable effort I emptied all my 357 and 44 mag ammo into to targets. Then I trimmed the fired cases to 0.015" less than minimum case length and resized using a carbide sizer die. Cases were at minimum case length ±.002". Never deburred or chamfered the cases - just trimmed, resized and loaded.

Since I trimmed all my mag brass, I've never had a stuck case because it was too long. I keep range pick up brass separate until it gets trimmed and then gets dumped into reloadable brass bucket.

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S&WHF 366