What Does DOPE Actually Mean? with firearms expert Jonathan Ferguson

Summary

Jonathan Ferguson investigates the origin of “dope” in long-range rifle shooting and challenges the popular claim that it originally stood for “Data on Previous Engagements.”

What rifle dope is

In shooting, dope means practical information about how a particular rifle, sight, and ammunition perform. Shooters use it to align the point of aim with the point of impact at different distances.

• A basic record may list the sight adjustments needed at each distance, especially for elevation.
• More detailed records can include horizontal adjustments and conditions such as temperature and humidity, as well as details about the rifle, barrel, and ammunition.
• The information may be kept in a notebook or on a card attached to the rifle. Modern shooters may also use ballistic calculators or computers.
• The underlying data should come from firing the equipment at relevant distances, not just from theoretical calculations.

Ferguson briefly explains the scope adjustment involved: a bullet follows an arc, so the rifle’s barrel must be raised to reach a distant target. The scope’s reticle is adjusted so the shooter can still aim directly at the target. He gives the example of a turret marked in milliradians, where each click represents a small, specified adjustment.

Where the word came from

Ferguson argues that “Data on Previous Engagements” is a later backronym, not the historical source of the word. He places its emergence probably in the 1990s, likely in the United States, though its exact path into military and civilian shooting communities is uncertain. It is now widely used as an expansion of the term, even if it does not explain the term’s origin.

His proposed earlier history is that dope was American slang for information or insider knowledge. He sees a plausible connection with horse racing, where “doping sheets” or “doping books” recorded horses’ results for bettors. He says this connection is persuasive but cannot be conclusively proved from the evidence he found.

Examples of the word in shooting contexts include:

• 1905: An NRA of America report caption refers to a rifle shooter’s “dope book.”
• 1908: Army and Navy Life mentions a “bag of dope” in a shooting-training context.
• 1921: R. E. Herrick writes about dope as a record book and explicitly compares its use in rifle shooting with horse racing.
• 1926: A hunting book uses “dope” for information relevant to rifle accuracy.
• 1985: Field & Stream uses dope in lowercase, without treating it as an acronym.

Lessons about word origins

Ferguson cautions against assuming that a familiar acronym explains an older word. People often invent plausible expansions after a word’s original meaning has faded; these are called backronyms. He gives “posh,” “pom,” and “POG” as examples of commonly repeated but, in his account, mistaken acronym explanations.

Research approach described

To investigate the claim, Ferguson:

• Looks for dated written uses of the word rather than relying only on later explanations.
• Uses sources such as Google Books, old magazines, and books to trace early examples.
• Treats online forums and oral traditions cautiously: they can suggest when a usage spread, but may not establish its exact origin.
• Distinguishes the earliest surviving written evidence from the date a term may actually have entered circulation.

Speakers and sources mentioned

Speaker: Jonathan Ferguson, presenting the video.

Sources and people referenced: Forgotten Weapons; History Hit; long-range shooting forums; Google Books; Eric Partridge’s dictionary; lexicographer Ben Zimmer; Field & Stream (1985); Arms and the Man (1921), including an article by R. E. Herrick; Hunter, Trader, Hunter (1926); the NRA of America’s 1905 annual report; Army and Navy Life (1908); and the Straight Dope website.

Ferguson also mentions a rifle donated by Dylan Kemster and a partner institution that loaned the rifle shown, but does not identify that institution.