2MG...I just pulled some bullets from .284 handloads that I had bought. They were loaded with 140 BT's. I have never felt the need for a BT or similar type bullet, but I thought I would play with them. Your comment about them making too much of a mess was in line with my thinking about BT's, although I have no personal experience with them.
The differing reports about their effects on deer or similar sized game were a factor in my never buying them for my use, but these were in the deal I made on these loads.
I had thought about loading them for my grandson's 7-08, but am not convinced they will do what I want. There are times when you need a bullet to make an exit wound, in order to leave a blood-trail. In the real world, not every deer drops in its' tracks, regardless of what they are hit with. My own experience is similar to yours, in that I mostly load SGK's in a PSP and have not too many complaints.
Last year, grandson shot a trophy buck at about 125 yards, with the 7-08 and a 140 factory loaded PSP. The buck ran, stopped and rolled over, slid down the hill and done. He was dead and didn't know it when he ran the 15 steps. You can't ask for much better performance from a bullet.