Most of the 147gr stuff marketed as subsonic will make power factor through a full size gun and be more pleasant to shoot.

My recommendation would be to reload, of course.

I prefer the snap and fast-return impulse of 124/125 bullets pushed by a fast powder like Titegroup or Sport Pistol, etc.

I shot a lot of WWB 115gr before I reloaded and it's fine. It runs, but it's hot, snappy, and loud. As are most of the 115gr factory offerings.