Try the 240gr xtp MAG's. They have a heavier jacket and are made for higher velocity than the standard xtp pistol rounds. Should shoot the same or close to your xtp's. Do a quick range check and adjust as needed.
My old mz LOVED the 240 xtp mags. Out of dozens of deer only had 5-6 run and they didn't make it far.
My new mz hates the 240's but loves a 300 gr xtp mag. Every single deer I shoot with the 300 xtp mag runs but only about 50 feet. When I use the 300 xtp (not mag) they run about 50-70 yds but have huge wound channel and great blood trails. The plain xtp's have much more fragmentation, especially when hitting bone. The Mags, have much better weight retention but still expand well.
This has been my experience, your mileage may vary.