In a quick exchange about bullets and premium twist rates in a previous thread, I was told that some bullets that I had had a good result in reloading would not be the best. So I thought I would have a quick look and found this from Berger
It was quite nice because it works if you input your own data and then goes on to recommend twist rates for your chosen bullet based on length of bullet,BC,muzzle velocity, barrel twist etc.
Now I typed in the stats for the bullet that was poo-pooed and it says that it will be very stable. Okay I thought.
Then I typed in the stats for the heavier bullet and it says that it will only be marginally stable and the twist rate will be completely wrong.
Now I have a 1:10" twist for a .257 Roberts which seems to be their given twist rate. However on crunching some random bullet manufacturers numbers into the calculator it has left me somewhat puzzled.
Now I'm not anal about this sort of stuff because if it shoots then I'll use it but why the disparity in information.