0.03% is ten times less than 0.3%, so I agree it is not even close. The money to manufacturers from smuggling is a rounding error. The numbers are from anti-gun activists, so they are incentivized to over state, not understate the smuggling.

The fact that supposedly every American owns 4 or 5 guns should hint at how bad the smuggling problem is

I think it shows how disconnected non-gun owners are from people who own guns. None of my liberal gun owning friends in California have fewer than 4-5 guns. My conservative gun owning friends in Texas have 20-30 guns. I've never met a gun owner that had 1-2.

Have you actually looked up any of the numbers you're writing here?

It seems like the USA has about 393.4MM civilian firearms, which is ~1.2 per capita. https://en.wikipedia.org/wiki/Estimated_number_of_civilian_g...

About 32% of Americans say they personally own one or more guns, and most of those people own multiple weapons. https://www.pewresearch.org/short-reads/2024/07/24/key-facts...

Where are the 'cooked statistics'?