Cap, excuse the lack of 'strikes' in some of my words surely senility catching up

I plan to use some cast boolits soon in my 7x57.If they arent gas checked, will try the paper and teflon patching and revert.
cheers
PS- isnt teflon some sort of a precursor to fluorine gas? any one able to clarify? I know we cook in teflon coated vessels, but...
As fr heresy, as Neil says: whatever blows your hair .