Hi Robert and welcome. The main difference between a Ruger Vaquero Bisley 357 Magnum in high polished stainless and a gloss finish is the degree of polish and how it reflects light. A high polished stainless finish has a brighter, more mirror-like appearance, mimicking the shine of nickel plating, while a gloss finish may have a slightly less reflective and more subdued shine. The high polish finish on the stainless steel is designed to resemble 19th-century nickel plating, and it's a popular choice due to its durability and resistance to rust. Cheers, stay safe and enjoy!