Mightimyty said:
I know .308 is embraced by the military, but I was slightly frightened by the arc of the trajectory, so I took a look at .270 win because I know it is known for having a much flatter trajectory, but I know nothing about it's accuracy or energy ratings at those distances.
I'm not a newb to guns, In fact I was born and raised around them, and would consider myself familiar with most common civilian weapon systems
Perhaps not so familiar, if you know this little about two of the most common "civilian" chamberings around...
If you're determined to get a rifle in a larger caliber, .308 would be a reasonable starting point, as you can do more or less anything with the right rifle in .308, especially if you reload.
But if you're still, as a shooter, "frightened by the arc of the trajectory," you really would be better off following the advice of
twins and
chris in va and getting a .22, especially since you say you're on a pretty tight budget. Not only will the .22 be cheaper up front, it'll be far less expensive to shoot.
If you seriously want to learn to shoot a rifle well at longer ranges, you'll be putting thousands of rounds downrange, and it adds up fast if you're shooting pretty much anything but .22 lr: whatever you spend on a rifle in a larger caliber will rapidly be exceeded by what you're spending on ammunition to feed it. A .22 is
by far the cheapest way to learn to shoot well, and by the time you can do so consistently with a .22 at 100 yards... you won't be scared of trajectories any more.