At one point barnes offered a x bullet 348 that was good as well but not available.
They did make the X in 200 and 220 grains. I have a bunch of the 200's and they are excellent...they shoot very well and are unusual in that they expand with six petals instead of four. I wish I'd picked up a bunch of the 220s as well.
I'd like to work a load with a little more velocity with them but here they are compared to the 200 Hornady, both shot into water jugs: