Don't want to derail this fine thread, but curious as to data source on temp sensitivity of 2000MR? Been looking for info on that myself, and for a few other powders (AA2230, Leverevolution)
PRM, a guy that posts over at snipershide.com worked on the 2000MR project... here's his data on temp sensitivity:
Quote
Data shows we're getting 0.85 foot/second change per degree, -20F to +160F.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
