[Arthur Wildfire! March]

You would not believe the extensive study some forensics experts did on this forum. They had a long thread on that one question. They calculated it to be 9 mm, which fits in, BTW, with NATO ammo. Very common in Europe. However, 45 calibre is very close to 9 mm. So I always refer to both possibilities.

The roundness of the hole indicates high speed impact, much higher speed than objects which fly from a plane crash. "Must have been a rivet," was a buzz word tossed at Coggswell. But it was a low speed crash to boot. No way could a rivet have done that from a low speed crash.

[butter pecan fan]

45 calibre is very close to 9 mm

Actually, if I understand this stuff correctly (I'm certainly no expert, but I think I do), 40 caliber is .40 inch, which is almost exactly 10 mm.

Since 1 inch = 25.4 millimeters (basic metric system conversion):

.354 inch = 9 millimeters, and
.40 inch = 10.16 millimeters, and
.45 inch = 11.43 millimeters.

So 45 caliber would be a lot bigger than 9 mm.