.44 mag carbine
I shoot Xtp's , initially 180's, now 200's, in my early model Ruger .44 auto carbines, used for deer. The old Rugers liked the lighter bullet better.
At carbine velocities, the 180's were a bit fragile, esp up close when the velocity was still high. They are billed as handgun bullets. The 200's do much better, rated for carbine velocity. Expansion has always been positive and dramatic. I have several recovered from deer.
The .44 autos are niche rifles, I hunt them in thick cover, from climbing stands, and ranges are often very short, like bow hunting short. (the 7pt this year was at 30 paces) When it is so thick that I cannot trim lanes practically for a bow hunt, (too much scent) or the deer may show up at odd angles and so close that a decent shot angle for a bow is highly unlikely, due to lack of the right tree, the little .44,s go hunting.