entropy
Member
1987 me could do the same at 600m with an A2. (And I still ended up in the middle of pack in the post match!) Doubt I could now, I rarely shoot over 200 yards. The peep aperture on AR sights actually works to sharpen vision, (does this by bringing the foveal vision to the aperture) but since everything is a trade-off in optics, the smaller the aperture (which sharpens the sight more), the less light it lets in. (which degrades accuracy)