Help - Need Information

[Fred McIntire]

In searching for an economic source for 7mm-08 brass, I have come across some articles that say the 7mm-08 cases can be made from .308 or .243 caliber cases.

Is this true?

How difficult is it to resize the .308 or .243 cases?

What tools or dies will I need?

What is the process?

Are there any reloading specific websites that you would suggest for good, accurate information when it comes to reloading?

I would really appreciate any input from experienced reloaders.

Thank you,

Fred

[SLAVAGE]

243,7mm-08 are the same case as the 308 so yes you can use them any time just one think if u start doing this its ok just dont have the other two calibers  because if u do your taking a big risk so if u do i dont sugest doing this all it takes is one misstake

[warf73]

You can use 308 brass the 308 is the parent case to the 7mm-08.
I wouldnt use the 243
In my exsperence its harder to up size than down size.
After sizing with your 7mm-08 die make sure your not over max trim spec.

Just make sure to use a good case lube but not to over lube.

I've over lubed when working on a wildcat and got peck marks were the lube had pooled when sized.

Warf

[Graybeard]

I've used all three to make each of the other on occasion. Any time you go from smaller to larger diameter you stand the chance of having a neck a wee bit thinner than normal. This "might" result in less than normal neck tension. When going from larger to smaller you run the risk of the opposite condition of the neck being too thick. Now this can cause abnormally high pressures.

Neither "always" happens but be aware it can and measure for it especially if you use .308 cases to make 7-08 and especially if you ever make .243 from .308.

But why you'd want to do this is beyond me. RP brand 7-08 cases are readily available from a large number of sources to be shipped right to your door at very reasonable prices. Check out Midsouth Shooters Supply for best prices but any mail order retailer of reloading supplies will likely have them also.

Unless you have a large supply of the .308 or .243 cases on hand now I'd just buy properly head stamped brass.

[The Shrink]

Annealing the brass is also useful to necessary when re-forming brass either larger or smaller.  This process work hardens the brass and annealing is a very useful step which will give you much longer brass life.  

Wayne the Shrink

There is no 'right' that requires me to work for you or you to work for me!

[smoky]

I see some on ebay all the time,  also, just about any reloading supply house should have some.

Smoky

[ricciardelli]

When Remington and Winchester new brass can be had for around $100 for 500 cases, and all the same lot number, why even bother resizing .308 brass?