01-12-2024, 12:41 AM
They mention that the bullet weighs 6.7grams or 103.4 grams. With the form factor shown, it needs a tungsten core to weigh that much. Similar to the 5.45 7N39. Then again, Russia ranks #2 in the world for tungsten reserves (second only to China).
The lack of tungsten resources in the US is one of the reasons I suspect behind the 6.8x51 was chosen vs a 6mm option. With a given bullet form factor, sectional density goes up with bullet diameter, so the less dense steel/copper US General Purpose bullet needed to be larger to provide reasonable barrier defeat and BC.
The lack of tungsten resources in the US is one of the reasons I suspect behind the 6.8x51 was chosen vs a 6mm option. With a given bullet form factor, sectional density goes up with bullet diameter, so the less dense steel/copper US General Purpose bullet needed to be larger to provide reasonable barrier defeat and BC.