I've seen that site. The problem is it doesn't have the missing information I need to make my own lead tables (the velocity of the Browning .50cal at various ranges).
I think a big part of the reason those aren't easy to find, is that they're going to be highly variable.
I think the best you'll be able to do is get a basic, generic trajectory table from a common, modern firearm and base your tables on that. I'd guess the 30-06 isn't probably that far off, but I'd have to look into it to know for sure. I think it has similar muzzle velocity, but I have no idea how similar the ballistic coefficients are...
Bullet velocity is normally measured near the muzzle, and sometimes you can find information for common rounds, out of common firearms, out at various distances. Even then, they need to be taken with a healthy bit of speculation. For the 30-06, you should be able to find some rough velocities out at common deer hunting ranges. Don't take them as "gospel" though.
In AH, I'd think some extensive use of the dot target coupled with the film viewer would give you a good idea of what the "times" would be.
There are so many variables at work that it's pretty pointless (and highly likely to be inaccurate anyway) to get that in-depth on a particular round. Just at the "gun end" there are a lot of variables that can effect velocity, starting with barrel length (and how it's mounted), and even action-type. In the round itself, the shape of the bullet, weight and speed all effect its trajectory. How the bullet fits the chamber even has an effect, which isn't minor. Bullets are mass produced to be on the "small side", while actions are mass-produced to be spacious enough to allow the largest commonly produced bullets to fit. Sure there are tolerances to follow, but there are allowable deviations. That means that almost all bullets are too small to fit the chamber ideally. Two bullets, identical in components but seated differently, won't fly the same. Two identical bullets, but fired out of two guns built by the same manufacturer won't fly quite the same...
Rifle manufacturers don't sell pre-sighted rifles because there's no way for them to compensate for the variables at hand. They leave that up to the guy that buys the rifle and ammo. They'll provide a sample trajectory table, but if you "live" by that table, you'll "die" by it too.
Even in the game, I suspect you'll find that as soon as the muzzle is pointed up or down a few degrees, it'll throw your table off. And if the altitude isn't always the same, that will throw it off too. Or if somebody fires while their wings are banked. Or while at anything other than 1G. If those things don't throw your table off, there's something wrong with the way the ballistics are modeled.
