Mule Deer states in one of the posts in Hunters Campfire or Gunwriters forum that he no longer uses temp-sensitive powders in his varmint rifles. I was wondering how many of you guys buy Hodgdon Extreme powders only of you are going to shoot in the summer and winter time? For example I have the H335 powder and this is obviously not an Extreme powder and I am using this now but know when summer approaches I will have to test my favorite load and adjust accordingly. This is for a varmint rifle but this applies to big game rifles also.