I don't think anyone has produced consistent results trying to reduce bore wear with bullet surface treatments. Most of the bore never does wear out, anyway except in full auto weapons. It's mainly the throat that breaks down. Norma has photos of a 6.5×55 barrel section that has lasted 10,000 rounds shooting moly-coated bullets and it is better looking than one that fired the same number of conventional rounds.
However, when Sierra tested moly bullets for accuracy and for how long it took to shoot a barrel out using .308 Winchester, the main effect they identified was the barrel built up less copper fouling. The tests were in Precision Shooting in 1998, IIRC, and the barrel's didn't last longer and accuracy was actually slightly poorer with the coated bullets in their tests, but I don't believe they were sure that it was a statistically significant difference. That is, it may have been a random result.
Walt Berger got still different results, showing a slight increase in ballistic coefficient for most moly bullets. IIRC, it was on the order of half to one percent. Since, as Bryan Litz points out, individual bullets can vary 3% in BC coming out of the same box, this is an improvement that largely lost in the noise for practical purposes. Berger believed it to be due to the lubricated bullet self-centering better in the throat. That would tend to improve precision on the target if correct. It would be an easy theory to test, and I think I'll put that on my bucket list to do.
Bottom line: If you want more bore life you can get your barrel (and action, if you don't have a barrel vice and wrench) cryo-treated. Sierra's tests that same year got about 20% increase in life doing that with stainless barrels. They didn't test chrome-moly steel, but in tooling it gains even more from cryo-treating than stainless does. Whether that will translate to proportional effect on throat wear in a gun, I can't say.
