I’ve been using this product for several years, in the trigger group, sear and hammer spring area… as it is mainly a dry lube that reaches tight areas and attracts less powder residue. Works great with ejector and firing pin springs for the same reason… I use a the oil in high friction areas like the bolt, bolt/barrel chamber and slide areas of my semi-auto autos. I have noted very little wear over the years. I have a Ruger Mark 3 with close to 15,000 rounds shooting steel challenge twice a month for the past 2 years and no wear marks on my bolt. My XDm 5.25 9mm is close to the same but with a much lower round count, about 5000 rounds. I will add that I clean and my guns after each match! This seems to work for me.