03-04-2017, 02:13 AM
I have an ACOG with a BDC cross hair reticle for a 5.56 20 inch barrel. Works great on my 6.5 Grendel with a 16 inch barrell using 107 SMKs or 108 Lapuas.
Muzzle velocity is right around 2525 fps. Did have to sight it in 2.5 inches high at 100yds. Using the 100 yd. cross hair its pretty much dead on at 200yds. At 3, 4 and 500 yds it hits within a couple inches of the respective cross hairs, Thats within the margin of error for me using a 4X scope. Despite what my ballistic software says, for some reason it hits about 6 inches low at 600 yds. Think it must be a problem from when the scope was made. Hits on 8 inch steel plates are easy out to 400 and not so difficult at 500 yds. In the past I used 123 grain AMax at 2425 fps. Results were similar but it was hard on bolts and brass with my prefered powder.
Not sure I would go out and buy an ACOG now due to the price, but love it on this rifle. Bought mine prior to a depoyment in 2004 before the Corps issued them to everyone, and took it on my next deployment because I trusted it. Now it has sentimental value. I think possibly BDC for 5.56 or 7.62 carbine might match even better?
Muzzle velocity is right around 2525 fps. Did have to sight it in 2.5 inches high at 100yds. Using the 100 yd. cross hair its pretty much dead on at 200yds. At 3, 4 and 500 yds it hits within a couple inches of the respective cross hairs, Thats within the margin of error for me using a 4X scope. Despite what my ballistic software says, for some reason it hits about 6 inches low at 600 yds. Think it must be a problem from when the scope was made. Hits on 8 inch steel plates are easy out to 400 and not so difficult at 500 yds. In the past I used 123 grain AMax at 2425 fps. Results were similar but it was hard on bolts and brass with my prefered powder.
Not sure I would go out and buy an ACOG now due to the price, but love it on this rifle. Bought mine prior to a depoyment in 2004 before the Corps issued them to everyone, and took it on my next deployment because I trusted it. Now it has sentimental value. I think possibly BDC for 5.56 or 7.62 carbine might match even better?