The 610s are great revolvers on several levels, some of which were already touched on here, such as accepting full moon clips to facilitate handy and speedy reloads. The 610's dual-cartridge capacity to fire the .40S&W
or 10mm AUTO cartridges rivals its .38Special/.357Mag counterparts. They also exhibit fantastic accuracy.
The use of the N-frame for the 610 - rather than the L-frame, as John Taffin had suggested way back in the day - means the gun is really
overbuilt for the intended 10mm round, initially conceived as a dedicated autoloading cartridge.
BUT, in my view, that's a
benefit due to its cylinder/chamber length relative to the 10mm's loaded COAL (max =
1.260 in
autos ). This allows you, when reloading, to
long-load the bullets, especially the heavier ones, and obtain higher velocities
with less pressure than would be safe (or sane) in a Glock 20, S&W 1006, Delta Elite, etc. (Right now I'm experimenting with 200gn XTPs loaded out to 1.400" over AA # 7 and AA #9.
Then there's the 610's unique ability to morph into a
3-cartridge shooter through a competent 'smith converting its cylinder to also fire the
10mm Magnum. Literally, then, you can walk up the power scale from a half dozen "mild" .40S&W rounds to hot 10mm loads to a "wild" moon clip full of 10mm Magnums that'll rattle the .41 Magnum's lunch and leave it cryin' for Momma.
Haven't decided yet if I want to go the Mag route, though ...
Mine: a 1st Gen 610 - a "no dash."
6.5" tube, fluted cylinder, original Goncalo Alves grips & a very low serial #.
These wheelies also shoot hard-cast boolits at least as well as they do the jacketed stuff.
The "moon" holds Redline's 220gn HC FP.