My wife and I shoot tons of the 105 gr. FP bullets in .38 Special in SASS matches, but I load them over Bullseye. I don't know how much velocity they will handle, since there isn't much bearing surface with that bullet, but Blue Dot wouldn't be one of my choices.
I'm loading them to 850 fps, and they're a great bullet at that speed, and I get a lot more bullets per pound of alloy with them. And the targets don't seem to care that they're being hit with a lighter bullet, either.......
Hope this helps.
Fred