Yes.
You're looking at a case originally designed to be loaded with black powder and fired from revolvers with longer barrels. There's only so much you can do when you have legacy components like that to build around. The new HST loaded like a wadcutter looks interesting, but I think it's also a +P load and I don't know of any reputable testing done on it yet.
Also keep in mind "low powered" is meaningless. If you don't need energy to cause expansion, you can get by with less to get satisfactory penetration. Energy =/= wounding potential.