Handloaders, 10mm has won me over my old 357s favorite. WHY? Performance advantage (based on my personal data), with more manageable recoil and equal accuracy, quicker follow up shots. Higher capacity. List goes on... Glock 40 MOS 10mm 6" lone wolf barrel S&W 586-1. 357 Mag. 6" 10mm, starline brass Max published charges(or worked up near to)of Blue Dot, Power Pistol and AA#9 pushing 180 gr. Hornady XTPs. WLPP. Blue dot won with max average chronod at 1318 fps. 357 Magnum, Starline brass. Max published charges (or worked up near to) of Win 296, 2400 and AA #9 pushing 158 gr. Hornady XTPs. WSPM or WSPP. Win 296 won with Max average of 1351 fps. Accuracy was very close, but felt recoil was observably less in the 10 mm glock vs the Smith and Wesson 586. Follow up shots easier in the semi auto 10mm vs wheelgun. The 357s when near max always have felt "stout" to me, you know youre shooting a magnum with the big BOOOM and muzzle flash, etc. and turning heads at the range. The 10mm...possibly like shooting a hot .40 smith and wesson. Maybe like a .45+p. Nothing to write home about as far as recoil or noise. BUT delivering a slight edge in foot pounds energy over the 357 boomer. Nobody turns their head at the range when shooting the 10mm. And thats a good sign. 10mm is a damn fine cartridge and has impressed the hell outta me. Just dont like chasing the brass.... Just picked up an AR chambered in 10mm, CMMG banshee. Quite awesome, doubt anything like that will ever be chambered in the rimmed 357 magnum. A Colt delta elite for 1911 lovers, thats next on my radar. Just gotta come up with another 1.4k which coincidentally how much the Banshee cost me. 10mm is filling more gaps than most handgun calibers i know of at the moment, even with Ruger making a super redhawk wheelgun in 10mm that also fires .40 s&w. Hmm. Lastly ive downloaded some 10mm loads to around 40 smith and wesson teritory (or even slightly above) , and in the big Glock 40 MOS they are tack drivers and can be shot extremely fast if needed. I would say i shoot it just like my 34 in lighter end 9mm target loads. Just awesome.