Opps. Sorry I missed this until now...
|Gidday Dallan, I would like to put my cast 30.30 loads into PB but cannot because it requires a BC for the bullet. From your vast experience and knowledge (grovel grovel) is there a method of determining a BC for a cast bullet or is there a way or circumventing (thats my big word for the week) PB requiring a BC?|
1895ss is right, you need muzzle and 100 yard velocities and and PointBlank can compute the true BC. Most MFG values are off a bit from real world values so its useful to test factory BCs sometimes.
|Trajectory: I have no problems bringing up a trajectory for a load. Now, I assume that the Advanced window is to put other trajectories on the grid for comparison? How do I go about using this feature? I have tried everything I can think of to no avail. The Help file doesn't give me enough info to work it out.|
Advanced Trajectory is for comparing different trajectories... I personally HATE how it works and I am taking that into account with the next version.
The way it works is you compute a normal trajectory then you entered the Advanced Menu. The last load you computed is now in the #1 slot. You need to "copy" it into other slots, then go back, compute something else, enter advanced and copy that over... repeat until you get all the loads you want in there and you can compare.
It sucks... sorry, I dont know what I was thinking at the time (well I do... it was because of how I stored the data that made it a pain to access).
V2.0 will store loads independantly and in the comparison view (note the name change) you can access "pull down" boxes to select and compare any load with any other load without even touching the ballistics menu.