There are two 240 grain XTP bullets in .44 caliber. There is the 240 grain XTP thati use withexcellent results and there is the 240 grain XTP Magnum. Both have beensold in .50 caliber sabots. Every deer that I ever shot with the plain old XTP was a pass through. i never used the XTP Magnum on deer because of the excellent results with the older bullet. There are also two different 300 grain XTP bullets in .44 caliber.

The two rifles that i currently use shoot the 240 grain XTP and the 250 grainSST to the same zero.

Then, to complicate matters further, Hornady and others sell.50 caliber sabots with the .45 caliber 240 grain XTP Magnum bullets.i never used these on deer.

Lost an elk due to the failure of a PTX bullet to expand. This is the one with the small rounded plastic nose. The blood trail petered out after about 400 yards.Four of us looked for her for about five hours. Another hunter found her and took her out.

Some day i am going to try all these bullets on packed wet newspapers and see what happens.

Hope that this helps.