Read and learn from the last 2nd Amendment case to be argued before the Supreme Court.
United States v. Miller, 307 U.S. 174 (1939)
In the absence of any evidence tending to show that possession or use of a "shotgun having a barrel of less than eighteen inches in length" at this time has some reasonable relationship to the preservation or efficiency of a well regulated militia, we cannot say that the Second Amendment guarantees the right to keep and bear such an instrument. Certainly it is not within judicial notice that this weapon is any part of the ordinary military equipment, or that its use could contribute to the common defense. Aymette v. State, 2 Humphreys (Tenn.) 154, 158.
The Constitution, as originally adopted, granted to the Congress power --
To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions; To provide for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress.
With obvious purpose to assure the continuation and render possible the effectiveness of such forces, the declaration and guarantee of the Second Amendment were made. It must be interpreted and applied with that end in view.
The Militia which the States were expected to maintain and train is set in contrast with Troops which they [p*179] were forbidden to keep without the consent of Congress. The sentiment of the time strongly disfavored standing armies; the common view was that adequate defense of country and laws could be secured through the Militia -- civilians primarily, soldiers on occasion.
The signification attributed to the term Militia appears from the debates in the Convention, the history and legislation of Colonies and States, and the writings of approved commentators. These show plainly enough that the Militia comprised all males physically capable of acting in concert for the common defense. "A body of citizens enrolled for military discipline." And further, that ordinarily, when called for service these men were expected to appear bearing arms supplied by themselves and of the kind in common use at the time.
Blackstone's Commentaries, Vol. 2, Ch. 13, p. 409 points out "that king Alfred first settled a national militia in this kingdom," and traces the subsequent development and use of such forces.
Adam Smith's Wealth of Nations, Book V, Ch. 1, contains an extended account of the Militia. It is there said: "Men of republican principles have been jealous of a standing army as dangerous to liberty."
In a militia, the character of the labourer, artificer, or tradesman, predominates over that of the soldier: in a standing army, that of the soldier predominates over every other character, and in this distinction seems to consist the essential difference between those two different species of military force.
"The American Colonies In The 17th Century," Osgood, Vol. 1, ch. XIII, affirms in reference to the early system of defense in New England --
In all the colonies, as in England, the militia system was based on the principle of the assize of arms. This implied the general obligation of all adult male inhabitants to possess arms, and, with certain exceptions, to [p*180] cooperate in the work of defence.
The possession of arms also implied the possession of ammunition, and the authorities paid quite as much attention to the latter as to the former.
A year later [1632] it was ordered that any single man who had not furnished himself with arms might be put out to service, and this became a permanent part of the legislation of the colony [Massachusetts].
Also,
Clauses intended to insure the possession of arms and ammunition by all who were subject to military service appear in all the important enactments concerning military affairs. Fines were the penalty for delinquency, whether of towns or individuals. According to the usage of the times, the infantry of Massachusetts consisted of pikemen and musketeers. The law, as enacted in 1649 and thereafter, provided that each of the former should be armed with a pike, corselet, head-piece, sword, and knapsack. The musketeer should carry a "good fixed musket," not under bastard musket bore, not less than three feet, nine inches, nor more than four feet three inches in length, a priming wire, scourer, and mould, a sword, rest, bandoleers, one pound of powder, twenty bullets, and two fathoms of match. The law also required that two-thirds of each company should be musketeers.
The General Court of Massachusetts, January Session 1784, provided for the organization and government of the Militia. It directed that the Train Band should "contain all able bodied men, from sixteen to forty years of age, and the Alarm List, all other men under sixty years of age, . . ." Also,
That every noncommissioned officer and private soldier of the said militia not under the controul of parents, masters or guardians, and being of sufficient ability therefor in the judgment of the Selectmen of the town in which he shall dwell, shall equip himself, and be constantly provided with a good fire arm,
etc.
By an Act passed April 4, 1786, the New York Legislature directed:
That every able-bodied Male Person, being [p*181] a Citizen of this State, or of any of the United States, and residing in this State, (except such Persons as are hereinafter excepted) and who are of the Age of Sixteen, and under the Age of Forty-five Years, shall, by the Captain or commanding Officer of the Beat in which such Citizens shall reside, within four Months after the passing of this Act, be enrolled in the Company of such Beat. . . . That every Citizen so enrolled and notified shall, within three Months thereafter, provide himself, at his own Expense, with a good Musket or Firelock, a sufficient Bayonet and Belt, a Pouch with a Box therein to contain not less than Twenty-four Cartridges suited to the Bore of his Musket or Firelock, each Cartridge containing a proper Quantity of Powder and Ball, two spare Flints, a Blanket and Knapsack; . . .