I've owned a good number of service arms, from turn of the century bolt guns to the euro-variants, AK's, a Galil, PE57, SVD, you name it. And, I shot them all alot.
I was a slow warmer to the AR, having listened to biased, stupid people fill my then young head with myths and half-truths about its reliability, "shits where it eats", fragile, etc.
So, when I bought my first a few years ago it was nice to dispel those myths and rediscover what I truly think is the best multi-purpose weapon of this century.
Today, I was just doing some load testing, blasting ammo, nothing more. Sat on the bench, with the chrono fired up, and shot some 10-shot groups to test out some plinking stuff with a very stock Bushy, cut to 18", chrome lined-A2 with a scope on the carry handle. Plain jain, the only mod whatsoever is a RRA 2-stage trigger.
Here was my first group, off a cold barrel:
First shot, the flyer, was the dead center hit. The next 9 went into a .812" group (center to center). The first 3 shots of that group were literally on top of each other. This load uses good bullets, but brass that's unprepped, just garden variety load, I didn't even weigh each charge....just crap that came off the progressive.
Here's a second group, on a warm barrel using cheapie bullets:
Not quite as good, but the first 7 shots were well within an inch before the warm barrel started pushing them open.
This isn't a match gun. It's not accurized in any way. It's a $750 Bushmaster XM15, nothing more....and it's 100% reliable, after many thousands of rounds. It's really impressive, when you think about it. Look at the vaunted AK. Yes, it's a reliable mo-fo, but even the most accurate sniper variant would be hard pressed to deliver those groups (trust me, I've owned 2 of them). After 3 shots, the SVD would walk them all over the place.
I know there's more to a good service weapon than accuracy, but being able to lay those rounds inside of a quarter, with just a rumdum simple A2, speaks volumes about the gun's design.
[/off soapbox]