I was using my new Redding 3 die set Saturday and when I went to resize my brass I noticed that the size button wasn�t doing anything. Upon inspection it measured .275 instead of .308.

Has anyone else had a similar experience?

I plan to contact Redding and see what they have to say. There is nothing wrong with the dies except for the full length resizing die and the neck die have the wrong size buttons.

Contact them and see if they will replace it with the "floating" expander button. More expensive for them, but you deserve it with their screw up.

So much for using these dies any time soon. I was wanting to work up a load for Deer season I don't like to wait to long.

I sent them an e-mail this was the reply.
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Thank you for contacting Redding Reloading Equipment.

Our annual two-week plant shutdown is from July 30 until August 15.
We'll be back in the office on August 16. You can expect a reply to your
e-mail within a few days after we get back. (If you call with your
inquiry after sending an e-mail, please let us know, so we don't waste time
replying twice.) If you're simply requesting a catalog, you don't need
to reply to this auto response.

Redding Tech Line

Redding is a good company and I feel they can correct it pretty quick. Call them and make it clear that you need to reload very soon and I bet they will have things straightened out in no time.