I’ve shot Prime 6.5 Creedmoor brass for a few years now and it is definitely high quality stuff. Now that the Lapua produces great Creedmoor SRP brass we wanted to test velocity window differences between the two. We were quite surprised how close these two samples of brass ran with eachother. These tests were done with 117 grain Soft Point spitzer-style bullets that we have shot in each new barrel until we are comfortable the blank is “broken-in” and speed has mostly stabilized. Please take note the charge weights and resultant velocities are for 117 grain bullets, not our Blackjack 131 gr ACE. We will update this data with Hornady Brass comparison soon!