.25-06 Remington (Using Sierra Bullets)
Date: May 15 2015
Notes from the Lab: .25-06 Remington (Using Sierra Bullets)
The .25-06 was a popular wildcat developed by A.O. Niedner around 1920. It was based on the .30-06 Springfield case necked to accept .257-inch bullets. Most powders from that era were too fast-burning to allow the cartridge to reach its full potential. After World War II, however, Hodgdon H-4831 appeared in surplus form and became readily available to handloaders, which significantly improved the cartridge’s ballistic potential and popularity. In 1969 Remington officially introduced the .25-06 Remington and began offering rifles and ammunition. Its success is reflected in the fact that practically every major U.S. rifle manufacturer, as well as countless foreign makers, offer rifles so chambered. It has proven an excellent choice for hunting deer sized game, while producing a flat trajectory and modest recoil.
Current Remington factory loads are advertised to push a 100-grain bullet to 3,230 fps, or a 120-grain to 2,990 fps (from a 24-inch test barrel). In chronographing the above loads in an Interarms Mark X test rifle with a 24-inch barrel, velocities were 3,188 fps and 2,958 fps, respectively. In developing the accompanying data those velocities were duplicated and even exceeded with several powders.
For varmint shooters desiring lightweight bullets, the 75-grain Sierra HP offers devastating results. Using IMR-4895, IMR-4064 and Hodgdon Varget, accuracy was excellent and exceeded 3,500 fps. Moving up to 100-, 117- and 120-grain bullets, good results were achieved using IMR-4320, IMR-4350, IMR-7828, Hodgdon H-4350, H-4831sc, Accurate 4350, Alliant RL-19, RL-22, Vihtavuori N-160 and N-165.