5,56 × 45
HPBT 77 GRS
SB556C

Designed for sport shooting. Hollow Point Boat-Tail bullets are the finest in accuracy and consistency.

Ballistics Ballistic Calculator

DistanceyMuzzle100200300400
Velocityfps2,8252,5852,3562,1391,935
Energyft·lb1,3641,142949782640
Distancey50100200300400
Points of impactin-0.40.0-3.2-12.7-29.8
Distancey5006007008009001000
Points of impactin-56-94-147-218-312-436

Properties

BulletTypeHPBT
Weightgrs77
Diameterin0.224
Sectional Densitylb/in²0.219
Material of jacketCuZn 10
Ballistic coefficientCalculationG10.376
G70.193
Rifle twist7" - 8"
PrimerTypeN/A
StyleN/A
CartridgeLengthin2.244
Power Factor Estimatedkgr·fps217.5
Test barrel lengthin20
Suggested useN/A
FeaturesN/A

Packaging

BoxCase
Cartridge quantitypcs201,000
Bar codeUPC
EAN
LengthinN/AN/A
WidthinN/AN/A
HeightinN/AN/A
Weightlb¾31½
Drawing numberO 6428-2SB 003
Boxes per case50
Weight per caselb31.5

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