Finally got my 308 Winchester DPMS Lite 20" last week, and put a couple of boxes through it.
Very nice "push" to the recoil. Nothing sharp. Still working on getting the scope tuned in. The gun is just shy of 8lbs. so it has a full size feel to it without being barrel heavy.
Sure wish it was "tighter" in the upper to lower fit. It has more side by side slop than any Oly I have owned. In short, not quite up to Oly's Standard for fit.
The first link is showing about .005" movement on the rear pin. Click on the link to get the movie.
This link shows the effect out at the barrel, about .035" Click on the link to get the movie.
The .308 next to the 300AR, 6x45, .223 and a slug from a black bear.
And both the .308 and 300AR in their mags.
While I don't like the sloppy fit of the DMPS, I'm sure it will serve me well as both a patrol weapon and hunting rifle. It's a big step up from the 300AR.
So, back to the question. Is that much play normal for this platform?