They are gun specific as revolvers come with different cylinder capacities .
Not just that -- different manufacturers bore their cylinders at different radii. You can't use a S&W .357 speed loader with a Ruger. I know.![]()
But S&W L frame 357, IE-586 and 686 sixguns, work okay with Colt Python speedloaders and vice versa.Not just that -- different manufacturers bore their cylinders at different radii. You can't use a S&W .357 speed loader with a Ruger. I know.![]()
But S&W L frame 357, IE-586 and 686 sixguns, work okay with Colt Python speedloaders and vice versa.
Same frame size. S&W has four differing frame sizes for 357 magnum IIRC.
That is also the size of speedloader that fits the Ruger GP-100.




























