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Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may easily be excessive in others. All loads should be reduced by 5%,  and developed following safe handloading practices as represented in established reloading manuals produced by component manufacturers. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

 

Cartridge: 7x57mm – Ruger No.1 Only

 Rifle: Ruger No.1  Max COL: 3.065″*
 Bullet Diameter: 0.284″  Primer: CCI 200
 Barrel: 20″  Reloading Dies: Lee Precision
 Max case length: 2.235″  3 Shot Group Distance: 100 Yards

*Some loads listed exceed COL and require checking for clearance

 

Bullet Bullet Weight
Grains
Net Water Capacity
H2O
COL”   Powder Type Powder Charge
Grains
Muzzle Velocity
FPS
Muzzle Energy
Ft-Lbs
100 Yards
Group Size
3 Shot “
Sierra ProHunter 120 54.9 2.935   Re17 52.5 3107 2573 1.1
Sierra ProHunter 120 54.9 2.935   H414 54.0 3154 2651 1.2
Hornady SST 139 51.6 3.000   H414 50.0 2933 2656 1.0
Hornady SST 139 51.6 3.000   IMR4895 45.0 2787 2398 0.7
Berger VLD Hunting 140 52.2 3.010   Re17 49.0 2845 2517 1.1
Berger VLD Hunting 140 52.2 3.010   H414 50.5 2965 2734 0.9
Berger VLD Hunting 168 52.3 3.170   Re19 50.5 2662 2644 1.1
Berger VLD Hunting 168 52.3 3.170   H414 48.5 2730 2781 1.0