Sellier & Bellot 4,4 sp boxer question

[ruger-p94]

I got these yesterday for loading my 38. I went to their website to check things out and I noticed that they have a primer for 357 magnum. I have always used cci 500s on both 38 and 357. My question is can I use these Sellier & Bellot 4,4 sp boxer on both also.
Here is their website with their info http://www.sellier-bellot.cz/ammo-components-primers.php

[texassako]

You sure can. The other one is just a small pistol magnum primer, but most of the books I have seen call for a regular small pistol primer in .357 Magnum.