Does the presence of a muzzle attachment change the point of impact compared to a bare muzzle?
I ask as I just got back to the range from shooting my DPMS .308 and my XCR after removing muzzle attachments.
I removed a 5 slot phantom from the DPMS and an A2 from the XCR. The DPMS shot 2 inches high and slightly right. The wind was 5 mph at 30 degrees to the right so that may have accounted for the slight right shift. The temp was 23 degrees colder from Friday when I shot it with the Phantom. The size of the groups were the same.
The XCR shot 3 inches lower without the A2 from its previous zero.
Any thoughts? I had never shot before and after groups with respect to with and without muzzle attachment and it was suprising to me at how much difference I got.
I ask as I just got back to the range from shooting my DPMS .308 and my XCR after removing muzzle attachments.
I removed a 5 slot phantom from the DPMS and an A2 from the XCR. The DPMS shot 2 inches high and slightly right. The wind was 5 mph at 30 degrees to the right so that may have accounted for the slight right shift. The temp was 23 degrees colder from Friday when I shot it with the Phantom. The size of the groups were the same.
The XCR shot 3 inches lower without the A2 from its previous zero.
Any thoughts? I had never shot before and after groups with respect to with and without muzzle attachment and it was suprising to me at how much difference I got.