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Reference library

Firearms, hunting and wildlife, explained with sources

Guides to rifles, shotguns, handguns, ammunition, optics and archery, plus hunting know-how by species for the United States and Canada. Every page lists the sources behind it.

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Guide · Ammunition and Calibers

.243 Winchester: History, Specifications and Common Uses

.243 Winchester is a .243 inch centerfire rifle cartridge introduced by Winchester in 1955. It is based on the .308 Winchester case and is commonly discussed as a dual purpose varmint and deer cartridge.

Guide · Ammunition and Calibers

7mm Remington Magnum: History, Specs and Ballistics Overview

The 7mm Remington Magnum is a belted, long action 7mm magnum and a long established hunting cartridge. The article covers pressure standards, factory load examples, recoil, barrel length considerations and the importance of using the exact cartridge name.

Guide · Bows and Archery

Arrow FOC Explained: Front-of-Center Balance and Why It Matters

FOC is the percentage that shows how far an arrow’s balance point sits ahead of its midpoint. It is useful for understanding arrow balance, but it should be considered with spine, total weight, tuning, fletching and the head you plan to shoot.

Guide · Ammunition and Calibers

9mm Luger: The 9x19mm Parabellum Cartridge Explained

9mm Luger, 9x19mm and 9mm Parabellum are names used for the same pistol cartridge. This guide explains the names, history, dimensions, pressure standards and NATO terminology with examples from standards and ammunition terminology.

How we work

  • Every page lists its sources

    Claims link to manufacturers, agencies and published references, so you can check them yourself.

  • Reviewed by a person

    AI can help research and draft, but a named editor checks and approves every page before it is published.

  • Official rules first

    Hunting and firearm regulations always link to the official agency, with the date we last verified them.

  • Education, not sales

    We do not sell firearms or ammunition and do not host listings or transfers.