My opinion of Sierra bullets is that they are usually among the most accurate you can buy and they are quite affordable. However, IMHO, they have fallen behind other companies by not offering a premium bullet with either a bonded core or some other mechanism to control expansion. I harvested 3 big whitetails with the .277" 140gr SBT bullet and was not pleased with the performance from any of them. In 2 of the deer, the jacket very clearly separated and the third deer went nearly 200 yards before it dropped. I would not expect the hollow points to perform better, unless you consider rapid expansion good performance from a big-game bullet.