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.