it comes down to the meplat of the bullet ... in this case the meplat has got to be nearly 70% of the bullet diameter ... the biggest thing that i can see is the abrupt shoulder, this bullet is close but not exactly, so that was why i was asking ...
Before reloading though place make sure the bullet seating depth and powder are not going to cause any problems. Pressure is is very sensitive to how the bullet depth sits in the case for the same powder charge.
Is there a similar bullet in any manual and what is it designated? That would be my first step in trying to answer your question. To me, it looks unlike a wadcutter or semi-wadcutter. Perhaps a manual reference would help? My two cents.
The nose profile won’t make a difference in the pressure. The amount of bullet that goes in the case will. A bullet that is longer from the crimp groove to the base will produce higher pressures than a shorter bullet if everything else is the same. Less room in the case equals higher pressure. That is why you always start with the starting load and work up. Always!