I have been out with my 7mm-08 this weekend. I loaded some loads with the 150 Swift SII (42gr H414, new Norma brass, cci 200 primer). I know this load is not going to break any speed records. It has been 90° where I'm at both days. I was wondering from experience how much I may have to adjust this load in colder weather say around 35° and do I need to switch to a mag. primer? This combo is shooting really good. I have some H4350 to work something up with an extreme powder if the H414 doesn't like the cold. This is a MCR built rifle with a 22" pac nor super match barrel.