As I understand it, they are made by Sun City Industries in China - the same company has the made the 320-series pumps for Savage for years now. For confirmation or other questions, probably best to ask Savage directly.

Manufacturer: Savage
100 Springdale Rd
Westfield, MA 01085
413-568-7001
savagearms.com
Manufacturer Part Number: 22557
Item Number: 22557
UPC: 011356225573 Made in the USA

These are all Savage Part numbers and Savage Universal Product Codes (UPC) : thetruthaboutguns.com/2017/04/jeremy-s/new-savage-arms-stevens-301-affordable-single-shot-shotgun/

I would contact savage and ask them. If you search the frequently asked questions on their website they say the 350 is made in China. Due to the low price of the 301 I bet it is also made in China. Thank you for being concerned about what country your money is going.

Manufactured by Savage Arms in Westfield, Massachusetts.