...I'm just "odd"... .41 Magnum is my favorite revolver cartridge and .38 Super is my favorite semi-auto cartridge.... For me they both have astounding accuracy and shootability...
Not sure at this point how many .41s I own... Have them from S&W, Ruger, Freedom Arms, Marlin, Taurus, USFA, TC, and IMI.
One thing not mentioned about accuracy is that almost all of the .41s made are bored the same, unlike many .44s and .45s many of which have way oversize cylinder throats...
As to ammo...there is now more commercial ammo from the Big Three and other smaller companies than ever before in history...and fewer new guns than ever before. If it wasn't for Ruger, Freedom Arms and Henry the .41 would be about dead as S&W only offers one...with "The Hole". But if one wants a nice .41 there are usually a lot for sale on the web, most in real nice condition.
One can now also buy .41 Special brass from Starline and loaded ammo from Reed's Ammo and several others. Target velocity .41 Magnum ammo is also available from HSM, Georgia Arms and several other smaller makers. I don't see where it is any more expensive than buying comparable ammo in .44 Magnum, .44 Special or .45 Colt...
Started this thread over on the CastBoolit Forums...lots of good links and posts for "Cult" members....
http://castboolits.gunloads.com/showthread.php?276144-41-Magnum-41-Special-Load-Data-Center
...a few of mine...
1979 57 blue Class A
1964 57 blue
1980 57 nickel Class A
1980 57 blue
1986 657 stainless
1999 657 Mountain Gun
1964 Model 58 parkerized...
1990s vintage Hunter, serial number 5...
1986 657 4"...
1970s vintage 57 8 3/8"...
...great caliber...just neglected...
Bob