Bianchi Speed Strips and their near-clones, the Tuff Products Quickstrips are a popular option for people who CCW a revolver to carry reloads. Being flat, they are easier to carry concealed than a speed loader.
Quickstrips are available for a variety of calibers and also in versions that carry 8 rounds. These have an advantage even if you're carrying a 6 shot revolver. This is my S&W 632 Airweight in .32 H&R Magnum.
As you can see, this allows you to space out the rounds in the strip to make loading 2 rounds at a time easier.
Incidentally, I don't carry a reload with the expectation I'd ever need it during a fight. Rather, it means that if I do have to defend myself with the gun and survive, I can remain armed afterwards.
The ammo is .32 H&R Magnum 98 grain powder coated wadcutters loaded by High Desert Cartridge. HDC says it's specced for the new S&W Ultra Carry revolvers in .32 H&R with a 1-7/8" barrel, which is the same as my older gun. I put just shy of a 50 round box through the gun yesterday and while I didn't chronograph it, I found it very clean shooting and accurate. It's my new carry load for this piece.