I’ve also had great results with Lapua subsonic HPs, but haven’t seen them for sale in some years. In my Browning T-bolt, they shoot better than the RWS ammo.

One time while hunting squirrels with a friend, we ended up competing. When we got together after dusk, John said “I guess I won” and showed me his 3 squirrels. When I emptied my coat he said “How did you do that?? I only heard 2 shots!!”, and I had to remind him I was shooting subsonics.