I run them at 3407 fps (20 shot string) & have never had a problem. I use RL33 in a 6-284. I have used them in matches from 400 - 1,000 yards. Very impressive at 1,000 yards.
Semper Fi
You guys know this, but in case a new guy reads, velocity isn't the core issue. Jacket separation is core issue. It's generally caused by a combination of things. Like velocity and twist rate. Sometimes rifling profile can be a factor.