.308 Winchester
Target Applications
Understanding a bullet’s stability requirements (barrel twist) is an important step when selecting a bullet for any application. The shooter has to either select a bullet that will be stable in their existing barrel, or get a barrel that will properly stabilize the bullet they want to shoot.
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The table above shows the minimum recommended barrel twists for each of the .308 caliber Berger Target bullets. It’s important to remember that the bullets will work from faster than recommended twist, but may not work from slower than recommended twists.
The twist is given as a ratio of revolutions per inch. In other words, a recommended twist of 1:13” means the bullet will complete 1 complete revolution in 13 inches. A 1:11” twist is faster than a 1:13” twist.
If you’re not sure what the twist rate of your barrel is, you can try contacting the manufacturer or visiting their website.
Also, if you’re interested in a more detailed investigation of twist requirements, you can email Berger’s Ballistician, Bryan Litz, at Bryan.Litz@bergerbullets.com for a free and easy to use calculator that’s based on the Miller stability formula (this century’s version of the Greenhill formula).
