Magnetospeed chrono update:
I loaded a few rounds to shoot over the chrono this afternoon. Ramshot suggests 46.2 grains Big Game as max for both 150 E-Tip and 150 TTSX, both loaded rather short. Since I'm loading long, I figured I'd see what 46.2 gr would do for the 150 ELDX.
The average for 3 shots was 2828 fps, ES of 24. Interestingly enough, the one shot I chronoed of 42.2 Varget gave the same velocity.
Here's the kicker: the 140 Partition load my other Tikka loves ran 2925 for 3 shots with an ES of 12! That's 45 fps more than my other rifle.
Not only that, but the 120 BT load clocked 3189, but just one shot.
Tight chamber maybe?
P
