Primer differences in 7 RSAUM

[maxpower]

As my crono has a new .338 hole though it (Wasnt me) I cant use my crono to do some checks. Has anyone here cronoed different primers in their SAUMs with H1000 powder? I had a load with BR2 primers and Wolf LRs, but want to try CCI250 and Fed 215s. What is the difference in velocities between these two standard LR primers and the Magnum primers so I can drop my load to stay in the same node.

 

[1KBR]

In my 7mm/270WSM using H1000 and RL25 powder, velocity average jumped from 2950 up to 2970 when switching from BR2s to CCI250s. This was in 2 different barrels, trying to get em to shoot. Fed 215Ms were about the same as the CCI250s.