Different weights can be found in bullets of the same caliber. For example the NATO-standard round is slightly (by a few grains) heavier than the US-adopted rounds. They can be inter-changed with marginal issues with performance. If the design features attributed to INSAS on the BR read-up is true, it is more heavy like the NATO standard than the US-adopted standard.shiv wrote:Questions:
What is the weight of a 5.56 mm bullet - say INSAS. Bullet alone - not casing/propellant
Similarly what is the weight of a 7.62 mm bullet.
Does the 7.62 Kalashnikov share ammunition with the old FN/Ishapore rifle? Does the AK 47 take 7.62 at all.
Is lead still used in the core of bullets?
Again there is much difference between different bullets of a 7.62mm round. Also 7.62mm is not a conclusive definition of even a similar family of a round. This I shall elaborate on next point.
The Kalashnikov round is 7.62x39mm, the NATO standard is 7.62x54mm. There is no way you can fit either round into a gun-chamber designed for another. Yes, the AK very much takes the 7.62x39mm rounds... its the only round it takes in fact.
What exactly do you want to do with a bullet? If the job has particular characteristics, you will be recommended an appropriate bullet - some with lead-cores if need be. Regular military cannot use expanding bullets(which I presume is the reason you want a half-jacketed lead round?), even Special Forces are very iffy, NSG - as a quasi-police force - can use it in their arsenal quite legally.