Solid core power cords under 300$ - List of manufacturers ?

There may be something to the concerns of using solid core wire for power cords.  Note, for example, that Morrow Audio uses solid core wire for all of their cable products except their power cords.  Just sayin'. 

Uh, nobody said there wasn’t something to it. For one thing, solid core power cords can be extremely stiff and might not even work in some situations. For another thing, metal fatigue failures can occur when the power cord is bent back and forth too many times. These two issues do not usually apply to power cords with stranded conductors.

+1 atmosphere 

The reason there is an aftermarket of power cords is precisely because solid core wire is illegal for use in a power cord. Romex is extremely high performance, which is why you really don't have to worry about what's in the walls (if that is what you have), and why that last 6' of power cord can make a difference (because it has to be multi-stranded).

But the liability of making a power cord out of romex is profound, so no-one actually does it.

So, in short (pun intended) there is no such thing as a power cord made of solid core wire.

Then how come Audioquest describes their new super power cords’ conductors as “solid.” For example, the Hurricane high current power cord, much reviewed recently by Fremer at Stereophile and by several right here on Audiogon, is described as follows on the Audioquest web page. Is the Audioquest dude going to jail?

Solid Perfect-Surface Copper+ (PSC+) Conductors
Uncompressed High-Current Transfer
Ground Noise Dissipation Technology (US Patent # 9,373,439)
Zero Characteristic Impedance (50Hz – 1MHz)
72VDC Dielectric Bias System (US Patent #7,126,055)
Directionally Controlled Conductors

The Dragon high current power cord:

Solid Perfect-Surface Silver (PSS)/Perfect-Surface Copper+ (PSC+) Conductors
Uncompressed High-Current Transfer
Ground Noise Dissipation Technology (US Patent # 9,373,439)
Zero Characteristic Impedance (50Hz – 1MHz)
Dielectric-Bias System with Radio Frequency Noise Trap
Directionally Controlled Conductors