If a rifle has a total length of less than 26 inches, or a barrel length less than 16 inches, under FEDERAL law it is a Class III firearm, and in the same legal class as a machnegun. "Short Barreled Rifles" must be registered with the Federal BATFE, and a transfer tax paid on them. Possession of an unregistered SBR carries substantial penaties including prison time.
In Ohio, the legal minimum barrel length for a rifle is 16 inches. Any rifle with a barrel length shorter than that would be considered a short-barreled rifle, which is regulated under the National Firearms Act (NFA).
16"
16 inches
As long as you follow all Federal laws, any length you want.
The minimum legal barrel length for a rifle without requiring it to be tax stamped and registered as a Short Barreled Rifle is 16 inches - that's federal law, and not just Vermont.
Without requiring a permit for a short-barreled rifle (SBR), 16 inches. That's federal law.
Without requiring an NFA permit for a short-barreled rifle, 16 inches - that's federal law, and does not vary between states.
16 inches without requiring an NFA permit, the same as it is for the rest of the country.
The BATFE website has the federal rules. IIRC, FL uses the same.
16 inches before an NFA permit is required, just like the rest of the United States.
16 inches, just like in all the states. Anything shorter requires an NFA permit.
16 inches, just like in all states. Anything shorter requires an NFA permit.