Sir Bevan, Hard to understand that nose projection thing but understand we must. The 400-gr/.458 with 0.750" NP might out-do the 400-gr/.458 with 0.650" NP ... Hoping to find that with a lot of help from MIB and CEB.
When CEB specifies a Nose Projection for the brass FN solids at their web site that includes the width of the leading band (about 0.050") I do believe. So a 0.650" NP has 0.600" smooth length from meplat to start of first band. A 0.460" NP has 0.410" smooth length. The 0.750" NP would be slick for the first 0.700", same as on the 450-gr/.458 Safari Solid.
Slick length + band width = Nose Projection.
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.