7.62x54r sizing

[JeffreyDeGraff]

Rimmed cases stretch upon firing, just like rimless and belted cases. When you fire it, the brass stretches to fill the chamber, thus the term “ fire forming”. If your rifle has a very sloppy oversized chamber you will get more stretch, or if the headspace is off, you will get excessive stretching.


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[Garand46]

Rimmed cases stretch upon firing, just like rimless and belted cases. When you fire it, the brass stretches to fill the chamber, thus the term “ fire forming”. If your rifle has a very sloppy oversized chamber you will get more stretch, or if the headspace is off, you will get excessive stretching.


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Should I just size the shoulder back a few thousandths by backing my sizing die off? I'm probably overworking my brass by full length resizing. Using Lee pacesetter dies.

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[JeffreyDeGraff]

Should I just size the shoulder back a few thousandths by backing my sizing die off? I'm probably overworking my brass by full length resizing. Using Lee pacesetter dies.

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That is what I would do.


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