Coming sooner or later:



This will be a dandy in the 400 Bateleur also: http://www.gscustomusa.com/408335HV303.html



08335HV303 Technical Profile © Application: General Hunting

Barrel Bore Diameter: 0.401" 10.185 mm The diameter of the barrel from land to land.
Barrel Groove Diameter: 0.408" 10.362 mm The diameter of the barrel from groove to groove.
Bullet Weight: 335gr 21.7g Bullets are guaranteed to weigh within 0.25% of the stated weight.
Bullet Length: 1.56" 39.500 mm
Secant Ogive Length: 0.65" 16.445 mm These dimensions are critical to consistent external ballistic performance and are held constant to within 0.005 mm (0.0002")
Meplat Diameter: 0.11" 2.700 mm
Min Bullet Protrusion: 0.73" 18.420 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: 1.06" 27.000 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: 3150fps 960 m/s If the maximum muzzle speed is exceeded, dynamic stabilty problems may be encountered.
Short Range Twist: 15.0" / 381 mm or tighter 37.5 Cal/length or tighter Twist recommended if average hunting distances are 200 yards or 190 m. A tighter twist can be used.
Twist: Sg = 1.5: 16.0" / 402 mm 39.5 Cal. in length General hunting twist for average distances to 410 yards or 380 m. A tighter twist can be used.
Minimum Twist: 18" / 457.2 mm 44.9 Calibers in length The twist required for stable flight and good terminal performance further than 410 yds or 380 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 = 0.434 3150 fps to 2375 fps 960 m/s to 724 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 = 0.423 2375 fps to 1600 fps 724 m/s to 488 m/s
BC = 0.417 1600 fps to 0 fps 488 m/s to 0 m/s
Suitable Cartridges, with consideration of the above specifications:

.408" calibers

Looks excellent.
BC
noselength
terminals

Very nice!

Will the final diameter be .408" as shown, or the more common .410"? A .410" would look awfully sweet in my 450-400NE 3 1/4.

Tanz,

The terminals are going to be predictably excellent, because of all the tests and field experience already out there, with GSC HV's so similar, like ...

416330HV: .416-cal/330-gr
410325HV: .410-cal/325-gr
even the 395340HV: .395-cal/340-gr

Rich,

GSC will tweak to whatever diameter you need, BUT,
they tweaked your bullet to make mine.
GSC already has your bullet ready: .410-cal/325-gr HV.
C.I.P. standard twist for the 450/400 NE 3-1/4" is 1:15", eh? That is plenty fast enough for the bullet.
That fast a twist on a your 450/400 NE is another reason that cartridge worked so well, same for 3" or 3-1/4" versions.

The .411-cal/317-gr for the 400 Whelen works great in a 1:14" twist.

The usual 1:13" twist for the .408 Chey-Tac, is more than fast enough for the .408/335 HV, and that ain't a bad thing ...
Just need to keep this bullet down to no more than 3150 fps to avoid the dynamic instability (Sd) mumbo jumbo.

Another thing I recently learned was that this dynamic instability thing may favor the blunter, less pointy, shorter-nosed bullet performance at higher velocity.
So the lesser BC bullet can go faster and not cause the nutational gyrations that open worm holes in the fabric of space-time with the higher BC bullet.

A slightly lesser BC bullet can go faster at MV with less yaw than the higher BC bullet,
thus may be more effective overall in the usual, shorter ranges of big game hunting,
even if the pointy VLD at lower velocity may win at 1000 yards
Hence the Game Field Domination Bullet (GFDB) pet name for this new bullet.

We make many dedicated bullets that are specifically for a particular cartridge. 500/465N.E., 450/400, 350 Rigby Magnum and 280 Ross come to mind. That said, we also do bullets for very common cartridges. Our most popular bullet is the 150gr HV that is used in a 30-06.

Whatever you use and whatever your application is, obsolete, rare or current, we probably have a bullet that will get the job done.

I wished GS would do a .333cal bullet in a flatpoint configuration with the length of 43mm.
Thats right...it´s for my .333Jeffery.

Jens, to get a bullet done that we do not have is straightforward. All you have to do is ask for it. If we do not have such a bullet, we will create the best possible bullet for the application and, for that, we need some detail from you. You can use Contact US at the site below or at gerard@gscustom.co.za.

Thanks Gerard.

I will do so.

With kind regards. Jens.