Almost forgot, another member used the 357 Maxi reamer to lengthen his 357 Mag to 360 DW. Said it worked fine and helped the accuracy.
EDIT, don't post before having first cup of coffee. The other member had a 357 Mag that he build as a stub project, the barrel was from either a lever or bolt gun. He ended up with a slightly short chamber that wouldn't accept a 357 MAG, he used the 357 maxi reamer to open up the chamber to 357 MAG. Accuracy did improve over the 38 SPC he was shooting.
Why be difficult, when with a little extra effort you can be impossible?
Wife's Handis; 300 BLKOUT
MINE: 270W, 308x444, 44 Bodeen Belted Magnum PI (Profino Improved), 444M shorty, 444M, 445 SuperMag Shikari, 45 ACP shorty, 45 Cal Smokeless MZ, 50cal 26" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.
Active Trader until: July 25, 2013