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The Ultimate Reloading Manual
Wolfe Publishing Group
  • reloading manual
  • alliant reloading data
  • reloading brass
  • shotshell reloading
  • bullet reloading
The Ultimate Reloading Manual

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.280 JDJ

.280 JDJ
Warning! CAUTION: THESE ARE VERY HOT LOADS! FOR USE IN SSK BARRELS ONLY! NOTES: Since this case has no rim, it is not generally safe to directly fireform it in the conventional manner. However, owing to the captive extractor system used in the Encore, it is possible to use a special technique in those guns. In a standard 280 case (sized), seat a jacketed bullet hard against the rifling (so that the gun will just close). The correct powder charge is about 5 percent below the maximum SSK-recommended load. J.D. Jones recommends 140-grain bullets for big game hunting applications on smaller species and bullets up to 175 grains on larger species. With the velocity potential of this chambering, premium bullets are probably a superior choice for hunting applications. While one could use 120-grain Barnes X bullets, which can offer impressive terminal performance, the handloader must use X-bullet specific loading data and special handloading techniques (e.g., the bullet ogive must be seated a minimum of 0.050-inch from the rifling). Further, those bullets work best when a friction proofing (such as moly-plating) is used. For this reason, SSK does not support use of X-style bullets in its guns. While no bullet substitution is benign, never substitute any X-style bullet in any load - begin with data specifically created for that bullet. Speer's 110-grain TNT should provide impressive varminting performance. (Cartridges of the World 9th Edition)
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
120 Nosler BT IMR IMR-4831 Subscribe 3,119
Remarks: energy: 2,590; maximum load; SSK barrels only
140 Nosler BT IMR IMR-4831 Subscribe 2,975
Remarks: energy: 2,750; maximum load; SSK barrels only
150 Nosler Part Alliant RL-22 Subscribe 2,775
Remarks: energy: 2,565; maximum load; SSK barrels only
175 Remington IMR IMR-4831 Subscribe 2,670
Remarks: energy: 2,770; maximum load; SSK barrels only