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243069HV082 Technical Profile © Application General Hunting

Barrel Bore Diameter: 0.237" 6.020 mm The diameter of the barrel from land to land.

Barrel Groove Diameter: 0.243" 6.170 mm The diameter of the barrel from groove to groove.

Bullet Weight: 69gr 4.5g Bullets are guaranteed to weigh within 0.25% of the stated weight.

Bullet Length: 0.99" 25.200 mm

Secant Ogive Length: 0.54" 13.600 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: 0.60" 15.200 mm Add the case length to these numbers to determine the maximum and minimum cartridge overall length (COL) that is possible with this bullet.

Max Bullet Protrusion: 0.71" 18.000 mm

Bullet conforms to CIP and SAAMI for magazine length. Case and COL based on:6XC. Check the COL of your rifle for suitability with this bullet as described above.

Maximum M/V: 3800fps 111 m/s If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered.

Minimum Impact Speed: 1600fps to 1700fps 488 m/s to 518 m/s At this impact speed, the bullet will open to at least double caliber.

Twist Rates are guidelines but the Minimum Twist must be observed

Twist: Sg = 1.4: 9.0" / 228 mm or tighter 37.9 Calibers or tighter General hunting twist for average distances to 440 yards or 410 m. A tighter twist (smaller number) can be used.

Minimum Twist: 10.25" / 260.35 mm 43.2 Calibers The slowest twist required for stable flight and good terminal performance further than 440 yds or 410 m. See 'Notes' below.

Calculated Ballistic Coefficient - Standard Metro G1 profile

BC = 0.316 Maximum M/V to 2700 fps Maximum M/V to 300 m/s Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. These BC values are only for use in an external ballistics program. Use the three values, as given, to approximately calculate BC for your launch speed and distance. For exact numbers, shoot drop tables at the elevation and temperature for your location.

BC = 0.286 2700 fps to 1600 fps 300 m/s to 488 m/s

BC = 0.280 1600 fps to 0 fps 488 m/s to 0 m/s

Suitable Cartridges, with consideration of the above specifications:

6mmBR Rem/Norma, 6mmRem, 6x50R Scheining, 243 Winchester, 240 Weatherby Magnum

NOTES

A Gyroscopic Stability (Sg) greater than 1.1 is required for stable flight with HV and HP bullets. For hunting under 440yds/410m, an Sg of up to 1.4 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.

243069HV082 Technical Profile © Application General Hunting

Barrel Bore Diameter:	0.237"	6.020 mm	The diameter of the barrel from land to land.
Barrel Groove Diameter:	0.243"	6.170 mm	The diameter of the barrel from groove to groove.
Bullet Weight:	69gr	4.5g	Bullets are guaranteed to weigh within 0.25% of the stated weight.
Bullet Length:	0.99"	25.200 mm
Secant Ogive Length:	0.54"	13.600 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:	0.60"	15.200 mm	Add the case length to these numbers to determine the maximum and minimum cartridge overall length (COL) that is possible with this bullet.
Max Bullet Protrusion:	0.71"	18.000 mm
Bullet conforms to CIP and SAAMI for magazine length. Case and COL based on:6XC. Check the COL of your rifle for suitability with this bullet as described above.
Maximum M/V:	3800fps	111 m/s	If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered.
Minimum Impact Speed:	1600fps to 1700fps	488 m/s to 518 m/s	At this impact speed, the bullet will open to at least double caliber.
Twist Rates are guidelines but the Minimum Twist must be observed
Twist: Sg = 1.4:	9.0" / 228 mm or tighter	37.9 Calibers or tighter	General hunting twist for average distances to 440 yards or 410 m. A tighter twist (smaller number) can be used.
Minimum Twist:	10.25" / 260.35 mm	43.2 Calibers	The slowest twist required for stable flight and good terminal performance further than 440 yds or 410 m. See 'Notes' below.
Calculated Ballistic Coefficient - Standard Metro G1 profile
BC = 0.316	Maximum M/V to 2700 fps	Maximum M/V to 300 m/s	Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. These BC values are only for use in an external ballistics program. Use the three values, as given, to approximately calculate BC for your launch speed and distance. For exact numbers, shoot drop tables at the elevation and temperature for your location.
BC = 0.286	2700 fps to 1600 fps	300 m/s to 488 m/s
BC = 0.280	1600 fps to 0 fps	488 m/s to 0 m/s
Suitable Cartridges, with consideration of the above specifications:

6mmBR Rem/Norma, 6mmRem, 6x50R Scheining, 243 Winchester, 240 Weatherby Magnum


NOTES
A Gyroscopic Stability (Sg) greater than 1.1 is required for stable flight with HV and HP bullets. For hunting under 440yds/410m, an Sg of up to 1.4 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.