Semi
I have been wishing that for a long time. The 200 shoots best in 50calibers and at least in mine the 180 does not do near as well. The 180 shoots ok in the 45 caliber but I am inclined to believe the 200 would be better and the sectional density is Better.
The choices in a 40 caliber bullet are limited, unless you cast a bullet or settle for lead copper plated bullet the only ones I know of are the SW, XTP and the Lehigh I have been using the Lehigh because I get very good groups with it wit max loads at long range.