Winchester
Copper Extreme Point
0.277" · 130gr
Weight
130gr
Caliber
0.277"
BC (G1)
0.418†
Sectional Density
0.242
Specifications
ManufacturerWinchester
ModelCopper Extreme Point
Caliber0.277"
Weight130gr
ConstructionNot published by Winchester
Sectional Density0.242
BC (G1)0.418†
BC (G7)Not published by Winchester
Drag Model UsedG1
LengthNot published by Winchester
SKUNot yet recorded
SourceWinchester website
† No ballistic coefficient is recorded for this projectile itself — some bullets are only ever published as part of a loaded round. This is Winchester’s published G1 BC for the .270 Winchester load (X270CLF), the same figure they quote across all 2 loads using this bullet. 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.



