new imr and alliant powders

[mapper]

Has anyone tried 4166 yet?
Supposed to be temp insensitive, copper reducing, and listed next to 4064 on burn charts..
http://www.imrpowder.com/press.html

Here is a burn chart
http://www.hodgdon.com/PDF/Burn%20Ra...02014-2015.pdf

Also has anyone tried 8208 xbr?
http://www.imrpowder.com/rifle.html

I'm trying to see where it stacks up to varget, 4064,4895,re15....
I have seen data on hogdon site next to 4064.. ( the 4166)

A temp insensitive 4064 sounds real good...

Alliant has some new powder out as well temp insensitive re 23 and re 26
Here is a post on them.
http://forum.accurateshooter.com/ind...opic=3861546.0

On to pistol powder...
Has Anyone tried alliant be-86?
Bullseye ignitability, power pistol geometry, flash suppressant, burn speed of unique..

Here is a post..
The alliant rep puts info in starting at post 2..

http://www.thehighroad.org/showthread.php?t=760289