H322 temp sensitivity

[nhshooter]

Has anyone tested the fps
speed variation of h332 from 20f to 100f
I have seen numbers for varget and h4350
Thanks

 

[K22]

Most stick powders I've used don't vary too much with temperature with regards to pressure surges. Where I've seen dramatic changes is with ball powders such as H380 and H335, both excellent powders accuracy wise but in my experience require some load adjustment from cold to hot weather.

No matter which powder you use changes in air density can change the point of impact. I've notice as much as a 1/2 to 3/4" change in elevation at 100 yards from 30 degrees to 85 degrees even using so called "temperature stable" powders.

 

[snert]

In small case (17FB) I noted a change in mine in hot weather from cold weather. I have not done scientific study. The 17FB I have seems twitchy, using 322 and 335