I started shooting the Barnes original X bullets years ago in a 7 mag. I killed a three Oryx and some elk with them in New Mexico. They worked well, UNTIL I bought a newer rifle with a tighter barrel. I had to back way off on the powder to quit getting pressure signs. I went to Partitions and Interlocks and never looked back. These were 7 mags, by the way.

I have taken numerous elk with the 160 Partition. It has never failed me. I would switch to monos ONLY if I had to. You virtually never have to worry about the Partition penciling through anything. There are numerous stories of the coppers doing that. They would be my choice ONLY for heavier game. They are not needed at all for deer-sized critters. Cup and core works great for this.

Unless you are forced to switch, I would stay with your good Partition bullets.

You did not "seen" anything, you "saw" it.
A "creek" has water in it, a "crick" is what you get in your neck.
Liberals with guns are nothing but hypocrites.