If you can find Gold Dot, that is what i would use. I haven't found any available lately. The price of Gold Dot is usually better than other good bullet
I have always used bullet that are too heavy for deer, like the 270 and 300 grain Gold Dot, and the 300g XTP, and the 300g partition. Deer end up dead when hit with these bullet, but perhaps using a lighter bullet would result in quicker drops.
Graf say they have
240g 44 caliber Gold Dot in stock. It could be i will give them a try.
Wideners has these 260g 45 caliber
Nosler Partition in stock, and the price is not too bad for any old bullet, but it is real good for a partition.
There are plenty of great bullets available, and some cost over $1.00 each, and some don't.