Thanks for the information. I will look into this powder on my next go around. I like shooting more than cleaning too <img src="/ubbthreads/images/graemlins/grin.gif" alt="" /> Here in CA where I shoot and hunt there isn't much of a need to be temperature insensitive, but it is a feature I look for just in case I get to hunt outside of balmy California. I too was impressed with the density factor and the appearent ease of metering.