Another way to look at it, ask for range ammo recommendation for 10mm and then walk backwards to 40 specs from the same manufacturer.
Per PMC, a normal range ammo, their 40 JHP 165 at 100yrds is going faster than their 10mm FMJ. On ammoseek.com, the JHP ammo is $20 dollars and the FMJ 10mm is $24. Both 50rnd boxes. Their 170gr JHP 10mm is within both 40/10mm FMJ and the 10mm JHP range "stuff" PMC is $16 for 25rnds, so not great ammo becomes $30 for 50 and is within their 40. Eek.
Now we ammoseek 50rnd boxes of both 180gr and 165gr 40 HST--the best ammo you can buy. $24 a box. Better bullet and faster than the PMC JHP range junk. You can literally fire the best bullet in 40 for $5 more than FMJ 10mm range "stuff." You can get FMJ range "stuff" 40 for $5 less than 10mm FMJ. You're range stash is the best defensive ammo available...and you're within dollars of range junk 10mm.
Two solid recommendations for the 610 if you must go 10mm. But in L frame you get the Plus 686, which the 686 being the better buy in my mind. 357 ammo almost all produces the blast that is fun. 10mm, you have to search it out and pay through the gills.
For range exclusive use, the 10mm makes almost no sense. Imagine shooting HST every range session. That's premium ammo. You'd be ahead doing that with HST than 10mm range junk for round quality and blast factor. Not a single thing between you and paper will know you shot a 40 135gr, 150gr, 165gr, 180gr vs a 10mm 200gr. The "fun" factor just isn't there per ammo options.
https://pmcammo.com/product-comparison/