.38 Sp in 77/357
I asked Ruger about using .38's in the new 77/357 and here is their reply:
"The 77/357 will usually function well when loaded with .38 Special. However, the left over space in the magazine allows .38 Special cartridges room to migrate, occasionally to where the rim of the top round gets caught behind the rim of the round below, causing a "rim lock" jam. The incidence rate of this malfunction is fairly low, and varies by ammunition type. If you want to shoot .38 Special in your 77/357 you are welcome to do so, but you can't blame your gun if it does not function perfectly. The gun was designed to shoot, and will shoot best, with 357 Magnum ammunition."