Not so sure. The feds would be able to track every purchase you made, fire arms and ammo included, and be able to tax to eradicate their demons. They already do for booze and tobacco. It would also require a whole new agency to issue and track sales tax registrations and payment.
@EdinVA - Exactly. The BATF is transformed into the longest acronym in government. Instead of searching for your stills in Franklin County, they will be coming by your house seeking proof that taxes were paid on the lumber you used to build that new garage. So instead of keeping one income tax return each year, one may have to keep receipts of everything purchases lest the re-ve-noo-ers come after you later down the line.
Now
@Bigun will argue this is all nonsense, that the Feds can be trusted to leave tax collection up to the States. But States are already in charge of cigarette taxes, liquor taxes, etc., yet we still have a BATF.
Bottom line, I DO NOT TRUST the Federal Government. So I am loathe to give them a new means of taxation over us. The power to tax is the power to destroy.