Well I just finished with a little cold weather testing myself, This topic is a good one and since I am in Southern Montana and it is only 0 degrees I gave it a go, tested a couple 7 mags with 140 Accubonds and 71 grains of Rl 19
average at 65 was 3255
1. 3248
2. 3225
3. 3209
4. 3179 10 minutes after # 3
Cant say RL19 was that bad at 0 degrees
Tested 168 Berger VLD's moly over 73 grs Retumbo, average at 65 is 3066
1. 3115
2. 3069
3. 3062
shot 3 168's naked with a different lot of powder and they rang up,1 3111, 2, 3099 and 3 at 3091
I also banged 3 rds through my little Marlin .243,58 gr Vmax
over 44.5 grs Varget, average 3680 at 65%, today
1. 3528
2. 3662
3. 3697
I would say the Marlin is more in line with the other guys findings as far as temp and velocity but they is what they is.
Thanx Dober for gettin me thinkin and my butt outside to try this before gettin on the plane, good stuff.
Rifles and ammo were left outside in the truck, only got 9
below last night, but the cold nites before really made the Elk come down off the Bighorns, we counted 30 Bulls last night, all dandys, 22 in one bunch, still fighting and carryin on, the bunch of 8 were some big old Monarchs, huge racks, nice to see.
