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308160HV079 Technical Profile © Application: General Hunting

Barrel Bore Diameter: 0.300" 7.620 mm The diameter of the barrel from land to land.

Barrel Groove Diameter: 0.308" 7.820 mm The diameter of the barrel from groove to groove.

Bullet Weight: 160gr 10.4g Bullets are guaranteed to weigh within 0.25% of the stated weight.

Bullet Length: 1.32" 33.500 mm

Tangent Ogive Length: 0.67" 17.000 mm These dimensions are critical to consistent external ballistic performance and are held constant to within 0.005 mm (0.0002")

Meplat Diameter: 0.09" 2.200 mm

Min Bullet Protrusion: 0.75" 19.060 mm Add the case length to these numbers to determine the maximum and minimum cartridge overall length that is possible with this bullet.

Max Bullet Protrusion: 0.98" 25.000 mm

Bullet conforms to CIP and SAAMI for magazine length. Check the magazine length of your rifle for suitability with this bullet.

Maximum M/V: 3500fps 1,067 m/s If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered.

Short Range Twist: 9.5" / 242 mm or tighter 31.8 Cal/length or tighter Twist recommended if average hunting distances are 240 yards or 220 m. A tighter twist can be used.

Twist: Sg = 1.5: 10.0" / 257 mm 33.7 Cal. in length General hunting twist for average distances to 480 yards or 440 m. A tighter twist can be used.

Minimum Twist: 11.5" / 292.1 mm 38.3 Calibers in length The twist required for stable flight and good terminal performance further than 480 yds or 440 m.

Minimum Impact Speed: 1600fps 488 m/s At this impact speed, the bullet will open to at least double caliber.

Calculated Ballistic Coefficient - G1 profile

BC = 0.401 Maximum to 2550 fps Maximum to 777 m/s BC values are calculated at standard Metro values and serve as a comparison between GSC bullets. Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. Enter these values into an external ballistics program to calculate BC correctly for your launch speed and distance.

BC = 0.381 2550 fps to 1600 fps 777 m/s to 488 m/s

BC = 0.383 1600 fps to 0 fps 488 m/s to 0 m/s

Suitable Cartridges, with consideration of the above specifications:

7.62UKM, 7.62Nagant, 30PICRA, 30-06 Court Cartry, 30-06 Springfield, 300 H&H Mag, 300Rem Ultra Mag, 300WinMag, 300 Wea, 300WSM, 300 Lapua Mag, 303Savage, 30-40Krag, 308Norma Mag, 30-378WeaMag.

NOTES

A Gyroscopic Stability (Sg) greater than 1.1 is required for stable flight with HV and HP bullets. For hunting at average 480yds/440m, an Sg of up to 1.5 or more can be used. For longer distances the Sg can be decreased but never less than 1.1.

*Note that Sg increases as twist tightens. *A 1:10" twist is tighter than a 1:12" twist within a given caliber only. *Twist rates given in caliber lengths can be compared across calibers. *Choose a bullet length best suited to your rifle twist and type of shooting. *When a bullet is specified for a given twist rate, it can also be used in any twist that is tighter. Using it in a slower twist than specified, is not advisable. *Some experimentation will be required to determine exact drop tables for your equipment and location.

308160HV079 Technical Profile © Application: General Hunting

Barrel Bore Diameter:	0.300"	7.620 mm	The diameter of the barrel from land to land.
Barrel Groove Diameter:	0.308"	7.820 mm	The diameter of the barrel from groove to groove.
Bullet Weight:	160gr	10.4g	Bullets are guaranteed to weigh within 0.25% of the stated weight.
Bullet Length:	1.32"	33.500 mm
Tangent Ogive Length:	0.67"	17.000 mm	These dimensions are critical to consistent external ballistic performance and are held constant to within 0.005 mm (0.0002")
Meplat Diameter:	0.09"	2.200 mm
Min Bullet Protrusion:	0.75"	19.060 mm	Add the case length to these numbers to determine the maximum and minimum cartridge overall length that is possible with this bullet.
Max Bullet Protrusion:	0.98"	25.000 mm
Bullet conforms to CIP and SAAMI for magazine length.			Check the magazine length of your rifle for suitability with this bullet.
Maximum M/V:	3500fps	1,067 m/s	If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered.
Short Range Twist:	9.5" / 242 mm or tighter	31.8 Cal/length or tighter	Twist recommended if average hunting distances are 240 yards or 220 m. A tighter twist can be used.
Twist: Sg = 1.5:	10.0" / 257 mm	33.7 Cal. in length	General hunting twist for average distances to 480 yards or 440 m. A tighter twist can be used.
Minimum Twist:	11.5" / 292.1 mm	38.3 Calibers in length	The twist required for stable flight and good terminal performance further than 480 yds or 440 m.
Minimum Impact Speed:	1600fps	488 m/s	At this impact speed, the bullet will open to at least double caliber.
Calculated Ballistic Coefficient - G1 profile
BC = 0.401	Maximum to 2550 fps	Maximum to 777 m/s	BC values are calculated at standard Metro values and serve as a comparison between GSC bullets. Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. Enter these values into an external ballistics program to calculate BC correctly for your launch speed and distance.
BC = 0.381	2550 fps to 1600 fps	777 m/s to 488 m/s
BC = 0.383	1600 fps to 0 fps	488 m/s to 0 m/s
Suitable Cartridges, with consideration of the above specifications:

7.62UKM, 7.62Nagant, 30PICRA, 30-06 Court Cartry, 30-06 Springfield, 300 H&H Mag, 300Rem Ultra Mag, 300WinMag, 300 Wea, 300WSM, 300 Lapua Mag, 303Savage, 30-40Krag, 308Norma Mag, 30-378WeaMag.


NOTES
A Gyroscopic Stability (Sg) greater than 1.1 is required for stable flight with HV and HP bullets. For hunting at average 480yds/440m, an Sg of up to 1.5 or more can be used. For longer distances the Sg can be decreased but never less than 1.1.

Note that Sg increases as twist tightens. A 1:10" twist is tighter than a 1:12" twist within a given caliber only. Twist rates given in caliber lengths can be compared across calibers. Choose a bullet length best suited to your rifle twist and type of shooting. When a bullet is specified for a given twist rate, it can also be used in any twist that is tighter. Using it in a slower twist than specified, is not advisable. Some experimentation will be required to determine exact drop tables for your equipment and location.