Thread: Fire forming 270 to 280ai

I do have a set of 30 06 dies some where, should I run the 270 brass through the 06 dies first and then through the ai die?
Will anneling help new brass

Originally Posted by Trav-6mmrem

I do have a set of 30 06 dies some where, should I run the 270 brass through the 06 dies first and then through the ai die?
Will anneling help new brass

You just have to run the sizing button in and out of the neck and preferably not FL size them. When you run the cases into the AI die make sure you have decent resistance on closing close so don't FL size with the die hard down on the shell holder. A bit off trial and error will be needed to achieve this. You will only have a tiny shoulder to achieve this. Necking down is preferable to necking up as it stops part of the shoulder being formed into part of the neck. .270 and .280 cases are the same length and cases usually become shorter when necked up and longer when necked down. I would anneal after fire forming.
GPM.