i shoot 42gr of 8208xbr with a 23.5 inch barrel, should i be fine in cold weath, would it help me much shooting a 165gr sgk.The idea of Palma brass is faster burning powders like Benchmark, H4895, 8208xbr, 3031, etc.. combined with light bullets 155grn and long barrels. If temps are below 50* its hard for even a CCI450 or Wolf srmp to ignite 44-47grns of Varget, 4064, RE15, 748, etc.. On a positive note using the small rifle primers makes for better accuracy and pretty much eliminates loosening primer pockets.
I shoot about 2675fps. I had it hotter but didn't group great so I pulled it down to 42grProbably won't do a lot of good especially in typical hunting temps. Maybe try 45-47grns of 4064 or Varget with fed210Ms or CCI BR2s, I know velocity will be higher than 42grns of 8208 unless you got some freak 8208 that's faster than RE10x.