Hmmm . . . . if I have time tomorrow, I will re-test with two fifty grain Pyrodex pellets. It's supposed to be a couple of degrees warmer - in advance of the weekend snowstorm.

I sure am getting good consistency with the Shockey Gold using the 338 gr. Powerbelts, though. Just wish those Powerbelts only cost $25 for 500 like the Keith bullets.