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last photo is next to a 7x57mm

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When measuring case length from a chamber cast remember: On a M98 Mauser barrel, the rim and extreactor groove of the case protude from the breech end. So you have to add about 3 mm to the distance from the step at the rear of your cast and the case mouth to get the real case length.

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Ah yes, very good point kuduae.

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A 7x57mm cartridge fits very loosely on the bolt face. Won't stay on by itself.
just ahead of the rim it's .474
length 2.2
at the beginning of the shoulder .438
.360 at the neck
.329 bullet

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From Kuduae's post:
As Lancaster wrote, all those rare "RwE" Mausers were in 8x57 IS originally, though some were rechambered to 8x60S or rebarreled later. Making any 8x57 ammo was prohibited by the Versailles treaty too. As this rifle retains it's original 8 mm barrel, it is either in 8x57 IS or 8x60 S. Forget any other exotic chamberings for cartridges unknown or unavailable in Germany then...

On a M98 Mauser barrel, the rim and extreactor groove of the case protude from the breech end. So you have to add about 3 mm to the distance from the step at the rear of your cast and the case mouth to get the real case length.


Your case length measurement (from cast) was 2.2" (55.88mm). Adding 3mm = 58.88mm.

7.92X57 (8X57) Mauser:


8X60S Mauser:


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Citizen of the Cherokee Nation

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