DD- I find that quite interesting. Did they use a rimmed case?
I wasn't aware of that.

The '06 is a 60,000 psi(SAAMI) round same as the .280Rem., which is interesting because the .270 on the same case,
is a 65,000psi round and chambered and barreled on exactly the same actions.
This little address has become handy at times. Good narration on pressure as well.
http://kwk.us/pressures.html