Nosler Partition Leading

[banen]

Ok this may seem like a stupid question but I have always wondered about this.  I have always been under the impression that leading was mostly caused by hot gasses coming in contact with the base of the bullet and thereby liquefying and melting the led to be deposited on the boar walls.  I know some also comes form the actual lead contacting the boar.  So my question is, why would Nosler Partitions not cause leading due to their exposed lead base?  Especially at the temperatures  and pressures in a rifle. 

[R.W.Dale]

Ok this may seem like a stupid question but I have always wondered about this.  I have always been under the impression that leading was mostly caused by hot gasses coming in contact with the base of the bullet and thereby liquefying and melting the led to be deposited on the boar walls.  I know some also comes form the actual lead contacting the boar.  So my question is, why would Nosler Partitions not cause leading due to their exposed lead base?  Especially at the temperatures  and pressures in a rifle. 

 99% of leading is a result of the contact between the sides a lead bullet to the bore, really bad leading can be a result of actually stripping the bullet through the rifling by either too high velocities or improper sizing, deposits from an exposed base bullet are negligible  after all most lead cored military FMJ bullets have an exposed base.