Is there a temp sensitive powder list or chart

[purple]

IMR 4320 is a good propellant, altho not as popular as it once was. I have found it very good in .30-06 bolt guns with a 168/173/175gr match bullet. I also like it in the 7.62x54 and found it very accurate in the .348 Win. Some folk like it in the .303 Brit as well.

 

[hitch.bd]

Did you chronograph your loads or have any other way of testing them, otherwise the increased recoil might be just the difference of shooting with a few layers of clothes and a parka in the cold to now shooting with a t-shirt and a light jacket. If you are reloading within the limits of a newer manual there shouldn't be a problem.

1973 Speer manual. I've got 3 other manuals but that is my go to manual