BENNYBOOBOO
Well-Known Member
Did a little experiment this weekend by freezing a five rounds of ammo and comparing the velocity with that of ambient temperature (55*) ammo and found:
-frozen ammo kept on ice (frozen blueberries) moved at an average of 2721fps
-Ambient temperature ammo moved at an average of 2732fps.
The load is a .308 win using lapua brass, F210 primers, 43.7 grs of IMR 4064 under a 168gr SMK seated about .005 off the rifling.
Has anybody had similar results with about 20* difference? Or should I clock the ammo when it warms up to about 80* and see where we're at?
Just looking for other views on my results.
EH
-frozen ammo kept on ice (frozen blueberries) moved at an average of 2721fps
-Ambient temperature ammo moved at an average of 2732fps.
The load is a .308 win using lapua brass, F210 primers, 43.7 grs of IMR 4064 under a 168gr SMK seated about .005 off the rifling.
Has anybody had similar results with about 20* difference? Or should I clock the ammo when it warms up to about 80* and see where we're at?
Just looking for other views on my results.
EH