I carry a 637 which is a 442 with a hammer personally I pefer one of the following.
Them are extremely easy on the hand and have pretty good expansion results from the test I have seen on youtube.
Other SD ammo I like is
Nice expansion low flash only drawback is they have a kick.... which can make follow up shots a bit tough.
As far as range ammo goes. what ever cheapest. I do pefer PMC or Independence if I can find it cheap enough. which ever range ammo you go with I suggest a 130gr because it will be lighter shooting out of a snubnose.