this post was submitted on 01 Apr 2024
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as a non gun person, how much are we betting that we use metric sizing, and the load them based on imperial standards (for the ammo manufacturers that work in the US)
(It's just a way to brand....a 5.56 bullet is a .223 bullet but a 5.56 cartridge is much "hotter" then a .223, you can fire a .223 through a 5.56 rifle but I would strongly recommend not doing 5.56 in a .223)
While that's true, another reason not to put 5.56 into .223 is that 5.56 has a slightly longer casing that might not have room to expand in a .223 rifle.
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This is a pretty good video explaining why the imperial system in the U.S. isn't as bad as it seems: https://youtu.be/iJymKowx8cY?si=wcyG7yM150e71Rn4
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let me just pop my 10 mg pills.
The United States has been on the Metric system since the late 1800s like every other Western country.
In what useful sense?
Every food label, with very few exceptions, lists the contents in either grams or milliliters, in addition to ounces or fluid ounces. Every thermometer I've ever seen has both Fahrenheit and Celsius scales. We buy electricity in watts with metric currency. We measure the light output in lumens, and the common lightbulb sizes are measured in millimeters, but the wires that carry the electricity are measured by AWG. The parts on my bicycle and car all use metric measurements, except for tires. Tires are an unholy abomination with section width given in millimeters, the cross-section in a unitless ratio, and the rim diameter given in inches.
Meh, what're you gonna do? We switched to, or adopted, SI and metric where it made sense, but we have a lot of legacy systems.
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