49willys
Member
Iv gone a bit over max out of a ruger redhawk 44 mag.for shooting bowling pins.shooting 300 gr.bullets.I dont know if it made a difference,but I won.
It's a funny thing I had some Blue Dot loads dialed in with 158gr JHP for 357 mag. in 70 degree weather, the same loads showed over pressure signs at below 32F Normally the opposite is true.working up a max load in 45 degree weather and then shooting it in 95 degree weather is probably not a good idea.
While most powders produce higher velocity as temperature increases, some powders like W231/HP-38 are more temperature sensitive than powders like Titegroup which is less sensitive. So if you developed max loads at colder temperatures, in the heat of summer, your loads will produce higher velocities. And there are reverse/inverse sensitive powders like WSF which will produce lower velocities as temperature increases - http://www.thehighroad.org/showthread.php?p=10117881#post10117881joneb said:It's a funny thing I had some Blue Dot loads dialed in with 158gr JHP for 357 mag. in 70 degree weather, the same loads showed over pressure signs at below 32F Normally the opposite is true.murf said:working up a max load in 45 degree weather and then shooting it in 95 degree weather is probably not a good idea.
Does anyone go by the old adage of if you are blowing out primars your in the red zone?