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257 Weatherby Magnum Load Data: 1,567 Published Loads from 8 Sources

Empirical Precision indexes 1,567 published loads for 257 Weatherby Magnum from 8 reloading sources, covering 42 bullets and 41 smokeless powders. Most published tables were tested in 24-inch and 26-inch barrels, and 13% of entries include published pressure measurements.

Published Loads1,567
Sources8
Bullets42
Powders41

Always start low and verify against the original published source before loading.

Coverage by Source (8)

PublisherPublished Loads
Sierra573
Hornady419
Hodgdon204
Nosler135
Speer130
Lyman42
Berger34
Barnes30

Powders Covered (41)

Select a powder to view its cartridges, burn-rate position and specifications.

Bullets Covered (42)

Grouped by bullet manufacturer with projectile weight and model.

Barnes (4)

  • 80 gr TTSX BT
  • 100 gr TSX BT
  • 101 gr LRX BT
  • 115 gr TSX FB

Berger (2)

  • 87 gr FB Target
  • 115 gr VLD Hunting

Hornady (11)

  • 75 gr HP
  • 75 gr V-MAX
  • 87 gr SP
  • 90 gr GMX
  • 100 gr InterLock
  • 110 gr InterBond
  • 117 gr InterLock BTSP
  • 117 gr InterLock RN
  • 117 gr SST
  • 120 gr InterLock
  • 134 gr ELD Match

Nosler (6)

  • 85 gr Ballistic Tip Varmint
  • 100 gr Ballistic Tip
  • 100 gr E-TIP
  • 110 gr AccuBond
  • 115 gr Ballistic Tip
  • 120 gr Partition

Sierra (11)

  • 70 gr BlitzKing
  • 75 gr VarmintKing HP
  • 87 gr VarmintKing Spitzer
  • 90 gr BlitzKing
  • 90 gr GameKing HPBT
  • 100 gr GameKing SBT
  • 100 gr MatchKing HPBT
  • 100 gr Pro-Hunter Spitzer
  • 117 gr GameKing SBT
  • 117 gr Pro-Hunter Spitzer
  • 120 gr GameKing HPBT

Speer (6)

  • 87 gr Spitzer SP Hot-Cor
  • 100 gr HP
  • 100 gr Spitzer BTSP
  • 100 gr Spitzer SP Hot-Cor
  • 120 gr Grand Slam SP
  • 120 gr Spitzer BTSP

Swift Bullet Company (2)

  • 100 gr A-Frame
  • 120 gr A-Frame

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