In the past 10.6 decades, Win 94s have had many small internal changes and come in many calibers beyond just 30-30. Assuming someone hasn't stuck on a bolt from a 94AE into a 94 to make a mis-matched parts gun, what caliber is yours?
I am agreeing with others that something is wrong, and it is probably in the cartridge chosen if there is no obstruction in the barrel. Since you raise the headspace issue, are you trying to load handloads? If so, then it is probably a sizing and or bullet size issue. Manufacturers have expectations as to what length the cartridge will be, changing that can cause problems with the freebore.