Any thoughts on .429 vs. .430 bullet diameter in jacketed bullets?

Also I treat my bullets with Fastex which bonds a layer of lubricant 1 molecule thick on the bullet. I have used this product with great success for eliminating copper from building up on the barrel. I also treat my barrel with Fastex and in theory copper never touches the barrel.

Given that, has anyone developed an opinion on jacketed handgun bullet diameters?

Thanks.

Daryl