It isprobablyin the new family of Hornadybullets. Hornady has gone ape over soft plastic stuffed into the front ends of bullets.

Thislink is for the new 265 grain .430 bullet. Sure is pricy when compared to the older 265 grain FP. Nearly all of usmuzzleloader folks overlook that 265 grain FP. Have a serious hunter friend who uses it exclusively on deer, hogs, black bear and elk. Nearly all his shots are bang flops. That bulletwas designed for the .444 Marlin.

https://www.hornady.com/shop/?ps_session=a852c804a19f515d7fe0bb954af9406a&p age=shop%2Fbrowse&category_id=b4ac225063c81103 887cf10c6d0bc204