Ray,

I'm not a expert on reloading, but I was aware of the need to use filler in the large nitro cases meant for cordite. However, in my slender little 9.3x74r cases the 3031 filled them up rather nicely (not really different than the 4064 I happily use now), there really was no extra space, but the pressure was still too high.

Not trying to start a fight, just trying to understand what happened.

Thanks