From the factual information I have been able to find, there are several reasons to not like the "inexpensive" Indian reproductions, but the SAFETY of the barrel is NOT one of them (more about the aesthetics, ergonomics and historical accuracy). As long as we are talking about the major US and Canadian retailers and the guns they bring in, the barrels are NOT the cheap DOM tubing that is often claimed. Is it reasonable to think that any company importing and selling these could stay in business for YEARS if they were selling potential "bombs" made out of pot metal or cheap tubing?
Now, putting ANY amount of powder (must less a projectile) into a display NON-GUN is crazy and unsafe.
That said, I bought the kit from The Rifle Shoppe because I wanted a real rifled barrel from a well-known barrel maker, a stock made of good old American Walnut and small parts that are very close to historically accurate.
Rob