Why is the 223 caliber and the 5.56 mm considered the same round?

Let’s learn why is the 223 caliber and the 5.56 mm considered the same round. The most accurate or helpful solution is served by Yahoo! Answers.

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Why is the 223 caliber and the 5.56 mm considered the same round?

When I do the calculation using the formula; 1 millimeter = 0.0393700787 inches I am coming up with 5.56 mm equals only .2189. Wouldn't that be smaller diameter than my ...show more

Answer:

A lot of calibers are approximate. Or their rounded in one direction because there is already something...

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Other solutions

Will a 22 round fire in a pistol that's caliber is 6 mm?

sorry im kinda a noob with guns but i have pistol and it say 6 mm caliber and 22 rounds fit in it is it safe to fire it with a 22 bullet.

Answer:

I've never heard of a 6mm pistol. This isn't a blank-firing starter gun, is it?

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Would getting shot by a 0.3 mm caliber round from a small gun on the torso or the neck actually be lethal?

Furthermore, how big is a 0.3 mm? Could you compare it to some household object so I'll know how big it actually is? I saw this "spy gun" that was supposed to be a ...show more

Answer:

Probably not- unless it was loaded with poison, or made of thallium or radium or some other toxic substance...

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Answer:

The cartridges are similar, but not identical. Differences include: Slight variations in neck diameter...

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Answer:

6.8mm has potentional, but im suspicious. .308 is to powerful, you dont need that much to kill someone...

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Has anyone ever hunted using a .223 caliber rifle?

Have you ever used a .223 round to hunt big game? And if so, what animal? I'm getting a .223 and want to know your thoughts on the round.

Answer:

The .223 round works great on rabbits (head shots only) or varmints, but it is illegal to use for deer...

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How do I calculate the weight of a round disc Dia 760 mm x 2 mm thicknes mild steel?

how do I calculate the weight of a round disc Dia 760 mm x 2 mm thicknes mild steel

Answer:

Get the volume by taking pi t r^2, noting that you are given the diameter, not the radius. Then multiply...

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Answer:

5.56mm is a highly effective killing round .22 LR is effective within 150 M (495 ft) although this range...

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Answer:

The unfired 556 round weighs 5.56 grams and the 762 x 39 mm weighs 7.62 grams.

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What are the advantages of the CheyTac .408 round compared to the standard .50 caliber round?

What are the advantages of the CheyTac .408 round compared to the standard .50 caliber round, and I've heard a rumor that it has almost the same power and velocity as it? Why is this?

Answer:

Some of the loads include bullets with extraordinarily high ballistic coefficients. It's a big son of...

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