WMR stands for Winchester Magnum Rimfire- and is the proper name for the 22 Magnum. They are the same cartridge. The 22 WRF is the Winchester rimfire, and is a shorter, less powerful version of the 22 magnum.
The .22 magnum is more powerful, longer and a larger diameter than the .22lr. The magnumcartridge does not use the "heel seated" bullet of the .22 LR, and USUALLY has jacketed bullets. The full name is .22 WMRF (Winchester magnum rim fire) and they do NOT interchange with .22 LR. There have been a few revolvers built with two different cylinders to permit switching between LR and Magnum.
Magnum P-I- - 1980 The People vs- Orville Wright 7-20 was released on: USA: 1 April 1987 West Germany: 24 February 1990
Risc vs. Reward was created on 1997-07-22.
Rockgiganten vs. Strassenköter was created on 1996-11-22.
Bart vs. Thanksgiving was created on 1990-11-22.
$22
Bush vs. Kerry Boxing was created on 2004-08-22.
The University of Illinois vs. a Mummy was created on 2006-04-22.
22 June 2010.
Clash of Warriors - 2002 Buckner vs- Ushijima 1-22 was released on: USA: 2002
357 has more stopping power. It also has quite a bit more recoil, though.
I have had personal experience with both cartridges but I have noted that my 7mm magnum barrels heat up quite quickly which can result in a change in accuracy. In terms of ballistics, the 7mm magnum outclasses the 30-06 by a long stretch. Both cartidges are excellent and an opinion would be irrelevant. The choice is soley up to you as to what you need.