Originally Posted by
Popgunshooter
Years ago when I reloaded I had a nice Browning A-bolt Micro-Medallion in 7mm-08. I tried the Barnes X-bullet (at that time) and after about 20 rounds at the range the barrel was getting much hotter then normal. I quit and got home and that barrel was so copper fouled it took me days to get it out.
You are not the first person I've heard that from.