I've got both AR-10s and an SR-25. The SR won't outshoot the AR-10.
The SR has a chromed bolt group, and the ArmaLite has a GI style group that's chromed inside.
Somebody around here pointed out that the SR-25 shows polishing outside because it has to. The upper is an extrusion and the lower is a forging, and they have to be polished to make the finish look the same. The AR-10 upper, lower, and charging handle are all made from forgings. That's a higher quality construction, not cheaper.
What a lot of you are confusing with quality is polish.
ArmaLite has a good summary of their rifle in a technical note. Find it in the library at armalite.com. I haven't found anything like that at Knight's site, so if anybody knows where it is please post it.
I've seen the ASA and Hesse rifles. Hesse quality is well known, and you can get the rundown by checking their industry site. ASA uses Hesse parts.