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264095HV134 Technical Profile © Application: General Hunting | |||
Barrel Bore Diameter: | 0.256" | 6.500 mm | The diameter of the barrel from land to land. |
Barrel Groove Diameter: | 0.264" | 6.710 mm | The diameter of the barrel from groove to groove. |
Bullet Weight: | 95gr | 6.2g | Bullets are guaranteed to weigh within 0.25% of the stated weight. |
Bullet Length: | 1.18" | 30.000 mm | |
Secant Ogive Length: | 0.67" | 17.087 mm | These dimensions are critical to consistent external ballistic performance and are held constant to within 0.005 mm (0.0002") |
Meplat Diameter: | 0.06" | 1.650 mm | |
Min Bullet Protrusion: | 0.76" | 19.180 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: | 0.91" | 23.000 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: | 4000fps | 1,219 m/s | If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered. |
Short Range Twist: | 8.1" / 206 mm or tighter | 31.7 Cal/length or tighter | Twist recommended if average hunting distances are 250 yards or 230 m. A tighter twist can be used. |
Twist: Sg = 1.5: | 9.0" / 226 mm | 34.7 Cal. in length | General hunting twist for average distances to 500 yards or 460 m. A tighter twist can be used. |
Minimum Twist: | 10" / 254 mm | 39.1 Calibers in length | The twist required for stable flight and good terminal performance further than 500 yds or 460 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 = 0.421 | 4000 fps to 2800 fps | 1,219 m/s to 853 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. |
BC = 0.368 | 2800 fps to 1600 fps | 853 m/s to 488 m/s | |
BC = 0.354 | 1600 fps to 0 fps | 488 m/s to 0 m/s | |
Suitable Cartridges, with consideration of the above specifications: | |||
260 Remington, 264 Win Mag, 6.5 Rem.Mag, 6.5-284, 26 Nosler | |||
NOTES | |||
A Gyroscopic Stability (Sg) greater than 1.1 is required for stable flight with HV and HP bullets. For hunting at average 500yds/460m, 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. | |||