FMJ or XTP? XTPs are probably the most common component HP there is, it's an accurate, stable, quality bullet and the boat-tail makes it easier to load without bulging the case. Just watch your data, they sit deep, so good for short OAL, but can compress a load or potentially go over pressure easier than generic RN.
I used Hornady FMJ 147gr in a 9mm load using W231 years ago. I was always pleased with the accuracy of the round, and it was very controllable. I ended up using that load for a number of matches. Alas, when a certain president got elected, components became hard to find, and the price of these bullets went pretty high. Ultimately, I decided to switch to something else. I think you'll be happy with the results.
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