stock saddle vs Western saddle

stock saddle and Western saddle both are nouns.

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

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

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

stock saddle (noun)	Western 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