I have both the LCR 357 as well as the LCR 22. I really like them both. The 357 version is 4 Oz heavier than the 38 and 22 versions.
The LCR 357 with the addition of an XS 24/7 Tritium front sight most closely compairs with the S&W 340 M&P. I have a hair over $500 in my LCR 357 with the XS sight added as compaired to $700 for the 340 M&P. I was planning on trading for a 340 M&P when I did an evaluation of Bang for my Bucks, and took home the pair of LCR's for $850. I then ordered the XS 24/7 front sight for $60 for the LCR 357.
For pocket carry the grip is a hair wider than perfect. You can swap to a more compact grip if you want it more concealeble however. I belt carry in a Lobo Enhanced Pancake about 50% of the time, and will probably stay with the recoil absorbing grip that came with it.
I like the LCR triggers just fine. You will need to work on a J Frame trigger to get it close to a box stock LCR. You may however see some variations. My brother also has an LCR 22. His trigger is not as good as either of mine. I am hoping that it smooths out with some use.
For Information:
The XS 24/7 front sight will not work on the LCR 22 for precision accuracy. The LCR 22's front sight is .038 shorter than the LCR 357. This means it should cause the LCR 22 to shoot low with a propper sight picture using the rear sight trough.
Accuracy is just fine with both of my LCR's. I have been shooting both in BUG Division in our Clubs bimonthly defensive pistol match.
Reloading. The Safariland J Frame Comp I speedloader will not work with the LCR 38 or LCR 357. The HKS will work, but not perfectly. With the HKS you need to just start the cartridges in the chambers, and turn the knob. If you push the speedloader down hard it will wedge into the grip and not release the cartridges properly. You might even drag one or two out of the chambers when coming up with the speedloader. My advice, if you normally carry Quick Strips, practice with them. I am reloading my LCR 357 nearly as quickly with Quick Strips.
Practice: When using the LCR 22 for practice it will reload using Tuff Products Quick Strips also. Use Model 1022 Quick Strips, and load them skipping a round between pairs for cylinder clearance. You can load 7 shots in this manner. Index the cylinder with the empty chamber up doing a practice reload.
I have not had either of my LCR's apart so far for a look inside. I probably will have a look inside sooner or later, if just to see whats inside one. I see no work needing done to mine to tune them up any at all.
I am carrying Speer 135 grain Short Barrel 357 magnums in my LCR 357 for serious carry.
I am carrying CCI Velocitor 40 grain HP ammo in my LCR 22, as well as Stingers. I have not tested either so far in a Fackler Water Box for expansion and penetration evaluation.
Bottom Line, I Like the LCR's, and I own several Smith & Wessons.
Bob