I have been leaving RCBS case lube on my 9mm cases. Even though I am using a carbide sizing die on my Dillion 550B, these lubed cases glide in the die and don't bump powder out of the powder horn.
I don't tumble the lube off , the rounds feed and extract just fine.
Silicone should be pretty inert in terms of brass, it will cut down on the friction in the chamber, should not hurt a thing.
Unless it duds primers.