The .25-06 Remington is a flat-shooting quarter-bore centerfire rifle cartridge based on the .30-06 case necked down to .257 caliber. A longtime favorite for varmints and open-country big game, it pairs high velocity and a flat trajectory with effectiveness across a wide range of game.

The .25-06 Remington existed as a popular wildcat for decades before Remington standardized it as a factory cartridge in 1969. It is built on the .30-06 case necked down to a .257-caliber (quarter-bore) bullet, a combination that gives it generous case capacity and high velocity — the foundation of its long, flat-shooting reputation. Ballistically the .25-06 drives quarter-bore bullets across a wide range — light bullets at very high velocity for varmints and predators, heavier bullets for deer, pronghorn, and similar open-country game. The result is a flat trajectory that makes it well suited to longer shots in open terrain, with recoil that most shooters find moderate and manageable for its performance. That versatility across small and medium game is much of its enduring appeal. The quarter-bore has a devoted following, and the .25-06 is one of its most established factory members, with solid rifle and ammunition support built over decades. It sits comfortably between the lighter fast-.22 cartridges and the heavier 6.5mm and .270 class. Today the .25-06 Remington is used for varmint and predator hunting, deer and medium-game hunting, and long-range target shooting, with steady ammunition availability. Its blend of high velocity, flat trajectory, and cross-game versatility is why it has remained a respected quarter-bore for more than half a century.

General information about this caliber — not a recommendation for this specific firearm.