When temp drops below 4 degrees i start to loose power, below 0 I loose about 30fps. Less power = more wind taken by pellet. With a crombo in the kit bag I can tweak the power back up again before a shoot. Bit of a faff and the gun (2002) takes a while to stabilise but at least i know I'll hit something! Tempted to shoot springer next year to avoid all this messing about before a shoot.
Rare to find a gun that doesn't loose power in the cold, I hear Walthers are pretty stable?!