Speedloaders.
If I remember correctly, a speedloader for a Model 10 S&W has the right hole spacing for Webley and Enfield cylinders, but the bodies of the Safariland (?) ones I had were quite deep as they were intended for 38 Special.
As the loaded 38 S&W ammo is quite short, not much of the bullet protruded above the speedloader body. This meant that they had to be fairly carefully positioned, which sort of detracted from the "speed" aspect in using them to reload the cylinder.