Powder coat thickness

[markH]

Just been out and measured some 44-40 bullets uncoated and sized v coated unsized.
Uncoated sized .4291".
Coated unsized .4318".
Total size increase from a light powder coat is an increase in diameter of .0027" , 2.7 thousanths of an inch or 68.58 microns.
I have tried the wet coating method using Acetone and powder , What a mess that was and when baked it looked like it had been applied by spitting it on.

But you're comparing sized uncoated bullets with unsized coated bullets The sized uncoated have already been reduced by the sizing process whereas unsized coated are as cast diameter and then coated.