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Need help identify "WRACO 18" case
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Aaron Zou
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October 26, 2025 - 10:57 am
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Hi guys, I received a dug out case with headstamp “WRACO” and “18” from a seller in China. Any idea about the headstamp? The case is about 57.66mm long, base diameter is 12.03mm.

The case looks a lot similar to 6.8x57mm Mauser which Mauser developed in 1907 specifically for China. I would be amazed that Winchester made 6.8x57mm Mauser for China!

Aaron

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Chuck
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October 26, 2025 - 4:26 pm
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Take some measurements with a set of calipers.  Overall length, neck diameter, base diameter, rim diameter etc.

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Bert H.
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October 26, 2025 - 6:00 pm
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Generally speaking, If Winchester manufactured a firearm for a military contract, they also manufactured and shipped 1,000 round per firearm.

Bert

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Chuck
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October 26, 2025 - 6:49 pm
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According to Donnelly’s manual for the Chinese 6.8 x 57 mm the dimensions for a new unfired case are:

OAL 55.676 mm

Head/base D 11.76 mm

Rim D 11.887 mm

Neck D 7.899 mm

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Aaron Zou
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October 27, 2025 - 3:05 am
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Blue Ridge Parson
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October 27, 2025 - 2:18 pm
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Looks like it may be caliber 8×57 Mauser.

BRP

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