this post was submitted on 06 Jun 2025
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[–] [email protected] 2 points 2 hours ago

Priorities.

[–] [email protected] 4 points 3 hours ago

They also measure displacement in ICE engines. You never see a 2 Quart muscle car (I'm guessing, I have nfi what a quart is)

[–] [email protected] 6 points 7 hours ago

We use it for drugs thank you very much.

[–] [email protected] 6 points 13 hours ago* (last edited 11 hours ago)

Hey! HEY!

For many calibers, we often still call them by their size in inches.

All of these are named by the diameter of the bullet in inches.

eg: .22 means .22 inches.

-rim fire-

.17 hmr

(basically a .22 WMR necked down to .17. rising in popularity as a kind of... more powerful, faster thus flatter trajectory, replacement for longer ranged .22 shooters)

.22 short

(early revolver round, early semi auto round, still used fairly widely for both, today)

.22 long rifle

(still widely used today in carbines and revolvers, as well as down caliber'd variants or kits for 'meaner' looking semi-autos)

.22 WMR

(.22 lr, but magnum. big boy .22)

-center fire-

.223

(the 5.56 before the 5.56 was NATO standardized. very short summary: they basically just put more gunpowder in a .223, and called that 5.56x45. many in the US still use weapons that are made for .223... but you're gonna want to upgrade your barrel to something that can handle the greater gun powder in 5.56 if you are not a fan of your gun exploding in your face when you fire it)

.38

(many variants of this exist, most notably the .38 ACP for semi autos, and the .38 special for revolvers)

.40, or 'forty cal'

(early attempt at making something meaner than a 9x19mm, led by the FBI, less generally popular today, but was very popular with the FBI for a while)

.45 ACP

(the caliber of the iconic Colt 1911)

.300 blackout

(an 'intermediary' round that is between the NATO 5.56 and 7.62, often used with suppressed weapons)

.357 magnum

(very, very common revolver round. Sig Sauer actually at one point made a .357 sig for use in semi autos... don't think anyone really uses those any more)

30-30, or 'thirty thirty'

(lever action carbine round, been around for over 100 years, like the .357, probably not going away anytime soon, as the lever actions that shoot them have not only remained fairly popular, but also are currently having a bit of a rennaissance with many gun makers in more legally restrictive states offering 'tactical' lever actions with modern housing, collapsable stocks, optics mounts etc)

30.06, or 'thirty ought six'

(basically, a 7.62 NATO that's 12 mm longer, used to be standard in military springfield rifles, also used in the BAR, still used by many hunters today in some kind of rifle)

.338 Lapua Magnum

(specialized sniper rifle round... if you don't count 50 BMG or even larger, anti-materiel rounds, the lapua has the longest recorded, confirmed sniper kill in history... though this may possibly now be incorrect as of the RussoUkraine conflict... point is, its a very capable sniper cartridge, good deal of wealthier US hunters and long range target shooting enthusiasts love it as well)

.410

(for some estoeric reason, this skinnier shotgun round is not referred to with the standard 'gauge' nomenclature)

.44 magnum

(dirty harry's revolver caliber, which will take your head clean off, assuming you do not feel lucky)

45-70

(older, fuck off huge revolver / lever action round)

'50 cal'

(can refer to either the .50 AE, famously used in the Desert Eagle, or the .50 BMG, used in the 'Ma Deuce' M2 Browning Heavy Machine Gun, and the Barret M82 Anti Materiel Rifle)

...

I've almost certainly missed a good number, point being, us American gun nuts... and/or gun nerds... yeah we learned metric, but we still use inches/imperial all the damn time.

We really only call NATO standardized rounds by mm. 9mm, 5.56mm, 7.62mm... and I guess the 6.8 grendel, and newer 6.8x51mm round the Sig Spear / M7 uses... and also I guess we size grenade launcher rounds in mm, but uh, ....civillians generally don't get live grenade launcher rounds in the US.

We had to draw the line somewhere rofl, and apparently it is grenade launchers, hahahah.

[–] [email protected] -3 points 19 hours ago (1 children)

They so stupid, they unconsciously use it everyday for example to calculate medicines' dosages or measuring time (miliseconds), it only shows how backwards and limited their measurement system really is.

[–] [email protected] 6 points 19 hours ago (1 children)

Time is mostly base 60. It goes against the metric system based 10.

It's like saying milifoot. For 1/1000th of a foot. Doesn't make it a metric unit.

[–] [email protected] 2 points 9 hours ago* (last edited 7 hours ago)

What I meant by my comment is that 1ms = 1/1000s, and the prefix "milli" is metric, ik time isnt metri, I should've explained that differently in my previous comment cus it indeed imply that time is metric. Thank you for correction!

[–] [email protected] 28 points 1 day ago (1 children)

M'erican here. My workshop is 100% metric. I do far too much measuring, designing and planning to fuck around with inches, feet and football fields. Motherfuck the imperial system. America has been robbed of the superior until of measurement. Every last bit of my work is in millimeters and it will be that way until I die in a horrible firey accident in my shop because beer and dangerous power tools are just too much fun when taken together.

[–] [email protected] 1 points 14 hours ago* (last edited 14 hours ago) (1 children)

The only thing I will hand to the imperial system is how it uses inches. Then again that's really a part of the system but of its practical use.

What I like is the use of parts of inches. Especially the fractions which are powers of two. Very useful. That's a little difficult with the cm and mm because they're already so small. And a dm is quite large on the other hand.

I know my uncle uses inches to make flutes e.g. Supposedly helps with getting things lined up and accurate to tune. I dunno. But yeah. Otherwise, metric ftw.

[–] [email protected] 2 points 13 hours ago (3 children)

What I like is the use of parts of inches. Especially the fractions which are powers of two. Very useful. That's a little difficult with the cm and mm because they're already so small.

What? With millimeters you barely have to use fractions because it is so small, how is that a negative? Fractions are also way harder to understand if you need to het precise

[–] [email protected] 1 points 10 hours ago (1 children)

Fractions are also way harder to understand if you need to [g]et precise

Not gonna lie, if you are working with carpentry or sewing or similar construction or creative work, you probably shouldn't have any issues with fractions...

[–] [email protected] 1 points 3 hours ago (1 children)

Just try adding 1/3 and 5/8. In my field fractions like that are nowhere near precise enough anyways, so you'd need to work with thousands of inches, which just makes you wish there was a smaller unit like millimeters

[–] [email protected] 1 points 3 hours ago* (last edited 3 hours ago) (1 children)

Just try adding 1/3 and 5/8.

Cherry-picking fractions with prime numbers. 👍 Obviously no harder than using a readily available calculator just like any engineer would with the metric system. That's fine too. You'd end up with a decimal answer, so then the benefit is lost, just as with fractions of cm.

In my field

Yup, say no more. I'm not saying inches are universally better. Only in certain situations.

[–] [email protected] 1 points 2 hours ago

I don't see how cherry picking is an issue when that issue literally can't happen when you're working with fractions, I also don't think those sizes are particularly uncommon?

[–] [email protected] 2 points 10 hours ago (1 children)

You've already gotten two real world uses here.

I'm not saying millimeters are a negative. Never did I say that. But I will say a base 10 doesn't have that many prime factors, so using measurement equipment where halves and thirds and smaller marked out can be pretty helpful. Metric measuring stuff never has that.

I'm just saying that if you are working with some kind of base size, and want to do stuff in fractions or multiple of that base size, the inch is a pretty good size. 👍

I'm from and in Europe, and I don't use inches myself. But there are obviously good uses for it.

[–] [email protected] 1 points 3 hours ago

I'm just saying that if you are working with some kind of base size, and want to do stuff in fractions or multiple of that base size, the inch is a pretty good size. 👍

I have a hard time understanding why you would prefer that over using decimal places to be honest, adding decimal places together is much simpler than different fractions

[–] [email protected] 3 points 13 hours ago (1 children)

Not flute working but sewing, and I know it sounds insane, but mm is just to small to be practical. It's one or two strands of tread whereas 1/4 or even 1/8 gives a proper piece to cut of.

And 1/4 inch seem allowance is just so much less bulky than the standard 0,75 cm, and so much more intuitive for me to work with .... and f. I just realized that all my arguments for using inches are based on habits..

Even though I'm european I never really applied cm in anything but homework and therefore never got a real sense of it. And a lot of the nice sewing patterns are in inches so that's where i started.

[–] [email protected] 2 points 3 hours ago

Well habits are valid and in the end a cm is just as arbitrary as an inch, but converting between units is just objectively easier with metric

[–] [email protected] 4 points 1 day ago* (last edited 1 day ago)

they would freak out if they have to measure temperature in kelvins, even celcius freaks americans out.

[–] [email protected] 5 points 1 day ago (1 children)

whats fucking weird to me is that we use millimeters and inches on the same fucking rulers.

[–] [email protected] 1 points 17 hours ago

I have some rulers like that but they are just very cheap.

[–] [email protected] 10 points 1 day ago (2 children)

And the only time they use the proper date format is their national holiday.

[–] [email protected] 1 points 2 hours ago

The US date format makes sense in the US. In a culture where days blur together endlessly in an endless slog of creating value for shareholders, the month is more important information than the day.

[–] [email protected] 7 points 23 hours ago (1 children)

If you mean dd-mm-yyyy instead of mm-dd-yyyy, I’d agree it’s superior. That said, other countries have us both with their fully ISO compliant yyyy-mm-dd standard.

[–] [email protected] 2 points 16 hours ago* (last edited 16 hours ago)

I prefer yyyymmddhhmmss.

Best for record keeping.

[–] [email protected] 14 points 1 day ago

This is why i use the amertric system

It 318 kft not 60 mi or 100 km. That avalanche was 1 decaempire State building in volume. 1 mi is actually 2.28 kft.

[–] [email protected] 1 points 1 day ago (1 children)

And by "Americans" you mean the companies that manufacture the firearms, right? Or whatever body, if any, that controls what size ammunition cartridges are measured by?

[–] [email protected] 2 points 1 day ago (1 children)

Both are used. If you see caliber after the number it's in 100 of an inch. If you see mm it's metric. (Though caliber refers to barrel diameter and can be expressed in imperial or metric). So a 45 caliber is 0.45 inches or about 11.5mm.

NATO has standardised on a few round types so they can share supplies between countries. The NATO 7.62×51mm round is very similar to the .308 and they can usually be interchanged.

[–] [email protected] 1 points 1 day ago (1 children)
[–] [email protected] 3 points 1 day ago

You can fire .223 in a firearm rated for 5.56mm pressure

.308 is the opposite. It has more pressure than 7.62mm

Most any new barrel is going to be rated for both pressures now a days, but always good to doublecheck!

[–] [email protected] 10 points 1 day ago (1 children)

Hey, we also measure our large soda bottles that way!

[–] [email protected] 8 points 1 day ago

And street drugs

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