6mm
This is the flagship of our bullet company, the first bullet that we ever produced. It has turned out, this is the bullet that has won more IBS and long range benchrest national competitions than any other in recent years. As a result, probably the most copied bullet in our industry.
Bullet:
Boat Tail Hollow Point
Grain:
103 Grain
G1 BC:
.507
G7 BC:
.260
G7 Form Factor:
0.958
Ogive Radius:
12.55 calibers
Sectional Density:
0.249 lb/in²
Rt/R:
0.80
Vapor Trail .243 caliber 103 grain BTHP
| Lot #: unknown | Ogive Radius: 12.55 calibers |
| Sectional Density: 0.249 lb/in² | Rt/R: 0.80 |
Ballistic Performance
| Above 3000 | 3000-2500 | 2500-2000 | 2000-1500 | Below 1500 | |
|---|---|---|---|---|---|
| G1 BC | 0.549 | 0.525 | 0.512 | 0.489 | 0.470 |
| G7 BC | 0.260 | 0.260 | 0.257 | 0.260 | 0.265 |
Averages from 3000 fps to 1500 fps:
G1 BC: 0.507, variation of G1 BC: 0.064
G7 BC: 0.260, variation of G7 BC: 0.010
G7 form factor: 0.958
Rifling Twist Rate and Stability
| Barrel Twist | Best Case | Stability Factor Nominal | Worst Case |
|---|---|---|---|
| 1:7" | 2.27 | 1.98 | 1.71 |
| 1:8" | 1.74 | 1.52 | 1.31 |
| 1:9" | 1.37 | 1.20 | 1.04 |
| 1:10" | 1.11 | 0.97 | 0.84 |
Minimum twist required for stability is 1:9.0″
Recommended twist for optimal performance is 1:8.0″ or faster