Thank you sir. I've got all kinds of mixed info when asking about it. Everything from info similar to yours...all the way to 'powder sensitivity is over exaggerated'. LVR is not a bad powder by any means in my opinion, but I choose more stable for where it may matter most. I can't always shoot the difference in plus or minus 40-60 fps (for example only), but I want to reduce variables to accurately gauge my personal performance.Not linear. Usually from a 70 degree baseline going cold (-20 degrees) will be about half the fps/deg value that going up to hot (140 degrees) will with *most* rifle spherical powders. That being said, I think if you keep it under 100 degrees it would smooth that out a lot and make it much more linear. Somewhere around 1.5-2 fps per degree sounds about right for LVR, if you take a look at Lennyo's numbers.
I still have 12lbs or so of LVR, it's great. I'm getting ready to load some for this weekend doing positional practice for an upcoming match.