Sako
Speedhead
0.312" · 123gr
Weight
123gr
Caliber
0.312"
BC (G1)
0.273†
Sectional Density
0.181
Specifications
ManufacturerSako
ModelSpeedhead
Caliber0.312"
Weight123gr
ConstructionNot published by Sako
Sectional Density0.181
BC (G1)0.273†
BC (G7)Not published by Sako
Drag Model UsedG1
LengthNot published by Sako
SKUNot yet recorded
SourceSako website
† No ballistic coefficient is recorded for this projectile itself — some bullets are only ever published as part of a loaded round. This is Sako’s published G1 BC for the 7.62x53R load (C630120ASA10). A ballistic coefficient is a curve fit that drifts with velocity, so it will differ in another cartridge. Where a load below publishes its own figure, that is the one the comparison and solver use.
Factory Loads Using This Bullet (1)
Sako
Speedhead
7.62x53R · 123gr · Speedhead
MV: 2,953fps
BC: 0.273 G1
Energy: 2,381ft-lbs
Type: Hunting