One for the dasher crowd, I fire-formed 150 cases using the COW method and I'm happy to say all went well. Now that I have 150 pcs. that are more or less 95% formed (cases still have a slight rounded shoulder to body transition) I plan on loading them with 107 SMKs' and begin load testing. However I've measured and found the fire-formed cases to be inconsistent in their "over-all" length, so with that at hand has other "Dasher" users found that the cases grew slightly with a second or third firing. I want to trim all of them to the same length but I don't want to do this until the brass has stabilized. Kindly let me know when you felt the bras had stretched and after ?? firings did you do your initial "trim to length.
Big Kev.
Big Kev.
