WFN means Wide Flat Nose, a nomenclature that Veral Smith of LBT uses.
I shoot 10mm from various autos and a revolver.
Since I also shoot .40 I have various lighter moulds for that that also work in 10mm. I use the cheap Lee 175 gr. 6 cavity to make shooting loads for steel plates, I have a pair of the Lyman 200 gr. TC moulds, I have a NOE 200 gr. mould TC mould for making heavier bullets that I can load long in the .40, I also have that NOE mould posted above to make heavier loads and lastly I have a LBT 200 gr. WFN mould to make my full power everything loads.
A few pics:
Here is a pic from L to R :
200 gr. bullet I pulled from some doubletap 10mm ammo
the 200 gr. WFN CG from my LBT mould
the Lyman 200 gr. TC bullet with only one of the two lube grooves filled up
Here is a pic of the WFN bullet loaded in between a 9x25 and a 180 JHP in 10mm
Next is that NOE 200 gr. TC bullet below you see it unloaded, loaded to .40 length, loaded long in a .40 case and loaded in a 10mm.
I also make my own .40 jacketed bullets using fired 9mm cases as the jacket. I can make some interesting things that you cant buy in the store just by using the right combo of fired case and bullet core.
In the Pic below L to R:
195 gr. JHP using 9mm case
195 gr. JHP with cannelure for revolver shooting using 9mm case
210 gr. JSP using 9mm case
240 gr. JHP using a longer 38 super case as the jacket