7mm TCU and 7mm08
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Thread: 7mm TCU and 7mm08

  1. #1

    7mm TCU and 7mm08

    Are the 7mm TCU and 7mm08 interchangeable? whats the difference?

    thanks in advance.

  3. #2
    Not the same. Read info on Wikipedia:

    7mm TCU

    7 mm-08 Remington

    Basically the TCU necks up a .223 to accept a larger bullet, while the 08 necks down a .308 Winchester to accept a smaller bullet. While the bullet is the same size, the case is not.
    The only difference between a liberal and a conservative is one mugging.

  4. #3
    thanks, I should have looked in my reloading manual earlier, I see the cases are totally different...

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