So I'm thinking my tax return this year should go towards my first semi-automatic rifle. I want the following:

10+ round mags
Well suited for long range (500+ m)
Good Accuracy
Very Reliable
$1500 at the VERY most, but prefer $600-$1000
Not super expensive to shoot


So far I've been looking at the FAL/L1A1, the M&P15R, M1A (probably too pricey), M1 Garand, BAR, and the AK47. What are your thoughts and what else is out there I haven't looked at?