Speed strips and .32 H&R Magnum?

[mlk18]

I currently have a S&W 642 and a dozen or so Bianchi speed strips. I am considering the purchase of a S&W 432PD just to add another snubby to the arsenal. Will the 38/357 speed strips also hold the .32 H&R Magnum rounds? If not how much smaller are the rounds? How do you carry extra ammo? Thanks in advance!

 

[Moonclip]

AFAIK, speed strips only work with 38/357mag. I wish Bianchi would offer them in other calibers, especially 44 for 44spl bulldog use.