Though I'm not a fan of polymer framed pistols, I do like the 10mm cartridge. I've had a Colt Delta Elite ( all SS 5" version) for many years.
As brass & ammo was very hard to find, I rarely shot mine. My club doesn't allow magnum or 10mm ammo to be used in their indoor range, so I had to shoot 10mm outdoors. Finding brass thrown in the grass was / is a pain.
I eventually had a 40 S&W barrel fitted to my Delta, now I shoot it regularly in the indoor range.
Funny thing about 10mm ammo.. NOW, unless you purchase specialty ammo ( like Doubletap , Underwood, etc) the 10mm ammo is not loaded too much hotter than 40 S&W. Anyone buying 10mm ammo should look @ the velocity it's loaded to, if you want true 10mm performance.
Hand loaders are free to load @ whatever velocity they feel is safe, in their pistols.
Shortly after getting my Delta, I loaded some ammo with 135 gr. bullets. Took it to Colo. to visit my old riding buddy & shot some of my loads.
Was impressed with how flat shooting those rds.were, shooting @ extended range.