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A comment on Scan of the Month: Nest Thermostat. Parent comment

Re:Scan of the Month: Nest Thermostat by sublinear on Wednesday December 14, 2022 @05:05PM (#33991280)
Ammunition caliber is similarly interesting
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Re:Scan of the Month: Nest Thermostat by aidenn0 on Wednesday December 14, 2022 @07:11PM (#33992932)
Right .223 Remington has the same bullet diameter of .222 Remington; namely 0.224 inches.

Metric dimensions of rifle-cartridges, however, seem to reliably be the land-diameter: 5.56x45, 7.62x51, and 7.62x39 all have eponymous land-diameters.

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