8 X 66 UNKNOWN - Cartridge Collector

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8 X 66 UNKNOWN

Bullet Diameter:       8.19mm
Mouth Diameter:    9.06mm
Neck Diameter:    9.08mm
Shoulder Diameter 12.54mm
Head Diameter: 13.79mm
Unfinished case, no flash holes. Rim looks to be cut for rebated type case. Case length = 67.10mm. This might be for the 8×66 Brenneke Maximum (W86)? Found amongst a batch of 7mm vom Hofe loads.