One fine day, a few years ago, a similar discussion arose. At the time, having never heard of a .357 Magnum Model 10, I became very interested and one Forum member said that there was one on one of the auction sites. I'm pretty sure I hit "buy it now" because it was mine in a heartbeat after I saw it.
I have taken the Texas concealed handgun, now license to carry, shooting test at least 6 times, with 6 different handguns: Ruger P-89, S&W CS-45, Norinco 1911, S&W 586/6" barrel, S&W M6906, and S&W M10/4" barrel - .357 Magnum. I always shot a score of 246 or 248 until I used the Model 10 .357 Magnum and I finally scored 250. It is a superb weapon.
Original look when acquired:
Current look:
If you look closely you can see that in the "current look", besides the elk stocks from bgmntmn on this Forum, the gun is not as "pretty" as when I first acquired it. That's because of water damage from fire hoses that hit my safe and got inside during my 2018 fire. I sold virtually every one of the water damaged guns, all good shooters (mostly S&W revolvers and mostly K frame snubs) because I couldn't bear to look at them. I refused to part with the M10 .357 Magnum.