primer vs powder

[Link]

6mm ai at 32gr Varget , BIB 103s, no pressure sign or hard bolt lift. All the loads are identical except for primer change. The 2 groups on the left are wolf and the two on the right are 450s. I shot 2 rounds of each over the Magneto speed, the wolf on the left were 3030 - 3039 and the 450s were 3010 - 3022. The wolf shot smaller groups, I see a slight difference in speed do you think if I increase the powder charge with the 450s it will tighten up? What to do?
thanks

 

[JFrank]

6mm ai at 32gr Varget , BIB 103s, no pressure sign or hard bolt lift. All the loads are identical except for primer change. The 2 groups on the left are wolf and the two on the right are 450s. I shot 2 rounds of each over the Magneto speed, the wolf on the left were 3030 - 3039 and the 450s were 3010 - 3022. The wolf shot smaller groups, I see a slight difference in speed do you think if I increase the powder charge with the 450s it will tighten up? What to do?
thanks

You will need to run a short ladder with each primer to be sure.
Jim

 

[HTSmith]

If it was me I’d sure try a couple of tenths more. Assuming you don’t have a laid up supply of the Wolf’s