What twist rate for 280 AI?
What twist rate for 280 AI?
The 195 is actually pretty heavy for the case capacity you have with the 280ai; I’d stay to 180 or less for pill weight, so a 9″ twist is enough.
How long does a 300 win mag barrel last?
The U.S. Army’s Special Forces Sniper Course (SFSC) states that barrel life for a . 300 Win. Mag. loaded with a 190-grain bullet (with about 67 grains of powder behind it) is 1,200 rounds.
Why the 280 Ackley Improved?
280 Ackley Improved is the steeper 40 degree, which lengthens the case body and allows for about 5 percent more powder capacity. This sharper shoulder can also increase case life, which is a good thing for the handloader.
What is a 280 Remington good for?
The 280 Remington could be the Goldilocks of standard-length action hunting rounds. Not too hard, not too soft, not too fast, not too slow, but just right because it shoots mid-caliber . 284-inch diameter bullets. It can be loaded with everything from 100-grain Sierra Hollow Points to 195-grain Berger Elite Hunters.
What kind of bullet is federal.280 AI?
Nearly concurrently, Federal announced it was working on three different .280 AI loads, including a Berger bullet and Federal’s own Terminal Ascent and Trophy Copper bullets. Plus, Petersen Cartridge offered premium .280 AI cartridge cases.
What’s the difference between the.280 AI and Ackley Improved?
The .280 AI’s additional case capacity does good things, but it doesn’t change laws of physics. With equal barrel lengths, the Ackley Improved version gets you about 100 additional fps of velocity with a 140-grain bullet and a 24-inch barrel.
What’s the difference between a 280 AI and 280 AI?
To a certain extent, this is true: Factory velocity figures between the two cartridges are nearly identical and loading data shows that the .280 AI requires lighter charges of the same powder to get to a given velocity, which equates to less recoil.
What’s the difference between Nosler and.280 rem.ammo?
Due to conservative loading of the .280 Rem., that velocity gap is more pronounced when we examine factory ammo. For example, all three of Federal Premium’s 140-grain loads for the .280 Rem. list velocities of 2,990 fps while Nosler’s 140-grain Accubond Ackley Improved loads get you 3,150 fps.