180 gr LBT. You caught me...my typing sucks.
To pass on a few things I've experienced shooting deer and elk with handgun slugs.
LBT or hard cast SWC Keith style slugs...work VERY WELL on big game. They tend to penetrate DEEP and STRAIGHT.
An EXIT wound is a definite PLUS. Makes tracking much easier.
Heart/lung shots work very well. LARGE target, easy to figure out WHERE to aim. Pop both lungs, hit the heart as a bonus...your quickly dragging out a deer or whatever.
Stick to BROADSIDES if possible. Take a look at the anatomy of your animal...theres a few books called "The Perfect Shot" or something like that. They show all the various organs at various angles. Worth a look. I know Safari Press list the book.
Good Luck.