Is Superformance temp sensitive?

[Walt Mills]

I recently started loading for a 6.5 Creedmoor. Just curious if anyone has any experience comparing superformance to something like H4350 as far as temperature sensitivity is concerned.

 

[todbartell]

I haven't used Superformance in years but it has a reputation for being temperature sensitive. Expect a spike in PSI in temperatures close to +30c

 

[bearhunter]

I haven't used Superformance in years but it has a reputation for being temperature sensitive. Expect a spike in PSI in temperatures close to +30c

This. I have had exactly the same results.

It will deliver fairly consistent velocities at just about any temperature, which usually makes for decent groups but does lose velocity around -20C