he ya'll.

i have got a Savage 10 short action that is barreled with a .308 barrel. i want to change barrels and caliber to .223. I know i need a new bolt head, but what parts of my current bolt head and bolt, ie the extractor, ejector, and firing pin can i use with a .223 bolt head? also, it's easy to find a new .223 bolt head, but if i need a new extractor, ejector, or firing pin, is Savage the only source for these parts?

thanks for the help