From an availability standpoint....

[Vern Humphrey]

But when it comes to revolvers, the .357 Magnum and the .38 Special are at the very top of ammo production.

Which is neither here nor there -- ammo makers make production decisions not on relative popularity, but on absolute popularity.

 

[easyg]

Which is neither here nor there -- ammo makers make production decisions not on relative popularity, but on absolute popularity.

It's still a "win" for the Ruger.

The .357 and .38 are ABSOLUTELY POPULAR, and no doubt will remain so in the foreseeable future.

 

[Vern Humphrey]

Yep. And rounds like the .45 ACP, .38 Special, .357, 9mm and .40 S&W will continue to be available in the future. Rounds like the rimmed 9mm for revolvers, the .45 Auto Rim and so on will be rare.