I just found a picture of my first lightweight steel sprocket showing one of the three bullet strikes. It had hit with sufficient energy that it had melted and put multiple hairline fractures in the alloy side flange and completely distorted the flange. Given the level of energy, I would guess that they were rifle rather than pistol bullets. This was just after the terrorist attacks in Belgium, so I wondered if some over-nervous armed security guard at the airport, had been scared by and shot at a rat in DHL's package storage area.

Wilson

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