You guys must not of read some of the previous posts? It's all about the earlier numbers being measured out of long, unvented test barrels. I'll say it again, when the new testing requirements went into place about 1978, and S&W ammo (for example) started being measured out of real guns, their published velocities dropped 20%. Unless you are shooting your .357's out of a 10" unvented barrel, don't expect to get the old published results.