8 × 57 JRS
SBT
V331942
220 GRS
SBT GameKing® – Spitzer Boat Tail bullets are designed for hunting at long range, where their extra margin of performance can make the critical difference. GameKing® bullets feature a boat tail design to bring hunters the ballistic advantage of match bullets. The streamlined tapered base of the boat tail bullet greatly reduces drag, which results in higher retained velocity, greater striking energy, a flatter trajectory and less wind drift than comparable flat base bullets.
Ballistics Ballistic Calculator
| Distance | y | Muzzle | 100 | 200 | 300 | 400 | |
|---|---|---|---|---|---|---|---|
| Velocity | fps | 2,287 | 2,130 | 1,979 | 1,834 | 1,693 | |
| Energy | ft·lb | 2,554 | 2,215 | 1,912 | 1,642 | 1,401 | |
| Distance | y | 50 | 100 | 200 | 300 | 400 | |
|---|---|---|---|---|---|---|---|
| Points of impact | in | -0.1 | 0.0 | -5.7 | -20.3 | -45.2 | |
Properties
| Bullet | Type | SBT | |
|---|---|---|---|
| Weight | grs | 220 | |
| Diameter | in | 0.323 | |
| Sectional Density | lb/in² | 0.301 | |
| Material of jacket | N/A | ||
| Ballistic coefficient | Calculation | G1 | 0.526 |
| G7 | 0.263 | ||
| Cartridge | Length | in | 3.110 |
| Power Factor Estimated | kgr·fps | 503.1 | |
| Test barrel length | in | 23½ | |
| Suggested use | N/A | ||
| Features | N/A | ||
Packaging
| Box | Case | |||
|---|---|---|---|---|
| Cartridge quantity | pcs | 20 | 400 | |
| Bar code | UPC | 7 54908 51085 6 | 7 54908 51585 1 | |
| EAN | 8 590690 331949 | 2 859069 033194 3 | ||
| Length | in | 5¼ | 7¾ | |
| Width | in | 1 | 12 | |
| Height | in | 3¼ | 6 | |
| Weight | lb | 1½ | 28 | |
| Drawing number | O 6432-5 | SB 008 | ||
| Boxes per case | 20 | ||
|---|---|---|---|
| Weight per case | lb | 28 | |
We also produce in this caliber
-
8 × 57 JRS Compare
HPC
Weight 196 grs 12,70 g V0 758 m/s E0 3 648 J # SB857JRSB -
8 × 57 JRS Compare
SPCE
Weight 196 grs 12,70 g V0 726 m/s E0 3 347 J # SB857JRSA