Sighting in 556 Classic Swat
So I took the new rifle to the range, just to put a few rounds down range the other day, and I have to say, I like this rifle. It does give the brass a nice toss, three benches over and about 6 feet in front of the firing line. I think I could have put a bucket there and it would have caught every single round. My issue is I couldn't get the sights adjusted. I have read all the issues with canted rails and gas blocks, etc. At 50 yards, I was just trying to get it to fire on the same vertical line as the sights.
I did bring it home and give it a good cleaning and then dropped the laser boresight in it. The sights now line up with the bore at 30 feet. I will have to head back out to the range and see what it can do now.
I did have a similar issue with an AR15 and a quad rail. I filed the sight base dove tails and introduced some shims to the low side and it shoots straight and true now.
How are you setting it up to zero? I used the 200 yard appature at 50 since I mostly have access to a 50 yard range. I was able to check my 100 yard zero once and it was really close. David
Here is a translation of the 550 manual. Not much on sighting in but it is neat to look at. 12mb so it may take some time to load up. http://www.mg-42.net/manuals/550_551_SP_manual1.pdf
Here is another method I tried (Post by Daniel) but went back to the 50/200 setting zero. http://sigarms556.com/viewtopic.php?f=2&t=10201
I used the 'close range' setting at 50 yards to see if I could get it on the paper. I did, low and left. I did one and two click adjustments in between mags. I had brough several mag types to make sure they all worked without issues. My goal was to just get the hits in-line vertically with the bullseye and then move out to 100 yards. I couldn't get it done. Maybe I wasn't moving the sights enough for that close a distance.
On a side note, every type of mag I had worked fine without a problem.
Using the laser bore sight, I set everything up and with a screwdriver, spun the sight over and lined everything up. The sight didn't look like it was off center or maxing out the movement.
I just have to go shoot it again now.
the swat clasic has two adjustments for left and right the rear rotary sight can be ajusted to allow about 18 clicks left or right of center. To truly tune it in with the factory sights you should center the rear sight and move the front sight left or right until you are near center, then just use the rear sight adjustment to fine tune it.