Originally Posted by mghoodlum
3. Does anyone know the average neck thickness of Winchester or Remington Brass?
I've been turning Winchester brass for a 25-06AI so I can neck size with Redding bushing dies. The necks vary in thickness from about .015-.016 to about .013. I had to turn to .013 to get them cleaned up all uniform. I would think it will be tough to figure out which bushing will be best unless you load some and measure those or turn the necks so you know where your at. What I have done is buy a sizing rod for the .25 caliber and thread it into my .270 die. Then I just pass the expander ball in and out of the new case necks (lube first). Then the cases can hold a bullet. I can then seat a bullet and then measure the neck diameter and subtract .002-.003 for the sizing bushing I need. But unless necks are turned to uniform thickness, I wouldn't use bushing dies.
I could have chosen Win or Rem brass. I've had just a little better luck with Win over the years, but not by much. So for this 25-06AI project I decided to just go with Win brass. Just my 2 cents.