I am not certain where this common misconception comes from.Back in the absolute heyday of the 52, most of the big, known ammo companies were all producing large quantities of factory ammo that would run beautifully in a 52, but here in 2016? I'm not sure many do at all. I believe that one of the Euro producers does... (is it Fiocchi?)
Federal, Winchester and Remington have always been producing 148 grain Match HBWC ammunition.
There has always been one or more of the major brands available at Midway USA anytime I have looked or ordered it. I go through several cases of factory 38 Special Match HBWC every year with no problems. Additionally I handload more HBWCs for training, teaching and demonstrations through the year.
The Ammo is out there . . . . . . . . .