03-08-2014, 03:49 AM
The 6.5x47 Lapua is rated for over 63,000psi SAAMI MAP, which is within 2000psi of the .270 Winchester. Depending on the primer, you can start seeing cratering at 50,000psi with the softer, thinner cups, whereas the thicker, stronger cups might not show any signs until they hit 70,000psi, and they might be ever so subtle.
What did your chronograph give you for ES and SD? How many shots?
What did your chronograph give you for ES and SD? How many shots?