Western saddle vs stock saddle

Western saddle and stock saddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
Western saddle	Yes	No	No	No
stock saddle	Yes	No	No	No

As nouns, Western saddle and stock saddle are synonyms defined as:

Western saddle and stock saddle: an ornamented saddle used by cowboys; has a high horn to hold the lariat

Western saddle (noun)	stock saddle (noun)
an ornamented saddle used by cowboys; has a high horn to hold the lariat	an ornamented saddle used by cowboys; has a high horn to hold the lariat