I'm considering a semi auto rifle in .308. I'm not real fond of the AR 10 variants because of the limited magazine and interchangeability. I am leaning more toward the H&K clones. The Century C-91, The CETME and the PTR-91. These things are everywhere and magazines are aplenty and dirt cheap. I found 100 of them for 150.00 on Gunbroker. I have heard bad things about the Century weapon. Any recommendations or am I leaving out any viable candidates?