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by stevenjgarner 1433 days ago
The 2nd amendment says: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." [0]

My understanding is that it is up to the courts (ultimately the US Supreme Court) to interpret the Constitution, and define things like "Arms", "security", etc..

> I can’t own a nuclear weapon

Careful what you wish for. If personal nuclear weapons ever become a thing, they too may be "Arms" "necessary to the security of a free State". It is hard to understand some rulings of the Supreme Court.

At the time of writing the 2nd Amendment (December 15, 1791), the accepted "Arm" was a musket, with a muzzle velocity between 1425 fps (434 m/s) and 1700 fps (518 m/s) with a ¾” (19.05 mm) diameter ball (. 640 caliber), and an approximate weight of .9 oz (25.5 g) [1]. Today the court accepts that an ArmaLite AR-15 is an "Arm", with a muzzle velocity of 3,300 ft/s (1,006 m/s) using a .223 Remington cartridge with a 55 g FMJ bullet [2].

The momentum of the AR-15 round is therefore approx 55,330 gm/s compared to 13,209 gm/s for the musket ball (ie more than 4 times greater). Too many American shooters make the mistake of thinking these modern "lightweight" weapons translate into less lethality, but it is the increased momentum from higher muzzle velocities that does the devastating damage to soft tissue and bone.

Take a look at the X-ray of a leg showing a bullet wound delivered by an assault rifle used in combat compared to an X-ray of a leg that sustained a bullet wound from a low-energy bullet, inflicted by a weapon like a handgun in Philadelphia. [3]. The trauma surgeons of the 19 children killed in the Robb Elementary massacre reported "They were so pulverized, he said, that they could be identified only by their clothing." [4]

[0] https://constitution.congress.gov/constitution/amendment-2/

[1] https://www.tandfonline.com/doi/abs/10.1080/15740773.2019.16...

[2] https://en.wikipedia.org/wiki/.223_Remington

[3] https://www.nytimes.com/2018/03/04/health/parkland-shooting-...

[4] https://khn.org/news/article/trauma-surgeons-uvalde-mass-sho...

3 comments

> At the time of writing the 2nd Amendment (December 15, 1791), the accepted "Arm" was a musket, with a muzzle velocity between 1425 fps (434 m/s) and 1700 fps (518 m/s) with a ¾” (19.05 mm) diameter ball (. 640 caliber), and an approximate weight of .9 oz (25.5 g) [1]. Today the court accepts that an ArmaLite AR-15 is an "Arm", with a muzzle velocity of 3,300 ft/s (1,006 m/s) using a .223 Remington cartridge with a 55 g FMJ bullet [2].

Why is it that political philosophy that hates constitutional originalism in every other case wants to try and selectively apply some weird quasi-originalist argument not to the amendment itself but to two individual words within it?

If the amendment was written before muskets were common would you argue in only applied to swords, bows, slings, and catapults? The amendment is about providing the populace with a mechanism to keep tyranny in check, its not about caliber and projectile ft/s.

You're throwing a lot of numbers around in an attempt to look like you know what you're talking about. Ballistics and wound cavities are much, much more complicated than just "more momentum == more deadly".

Example: The US military just replaced the .223 with .277 Fury for exactly the reason that the .223 is _too fast_ and doesn't shed enough energy when hitting a target.

Furthermore, you're mixing grains (gr) and grams (g). A 55gr (grain) bullet is 3.56 grams. A 0.9oz musket ball is 25.5 grams. So your momentum calculations are (11'067-13'209) grams * m/s for a musket and 3'581 grams * m/s. So the musket actually has 3+ times more momentum than the .223 round.

Musket balls are absolutely huge, there are effectively zero modern rifles which shoot a .640 caliber round. The .223 is a very small rifle round.

https://www.quora.com/Would-it-be-worse-to-be-shot-with-a-mu...

I'm "throwing ... numbers around" and including citations precisely so that someone like yourself can illuminate where my understanding is incorrect. I appreciate your clarification between grains and grams.
Good, then go edit your comment to reflect reality.
This does not even get into the expanding, or hollow-point, bullets used in the AR-15's to open upon impact and cause more damage to their targets. [0]

[0] https://archive.ph/kCfK4#selection-781.2-784.0

The purpose of hollow points is to reduce over penetration, so the bullet doesn’t go through the target and injure someone else behind it.

Can you stop with the nonsense? You produce it faster than I can correct you.