gregw45 and Tweak,
Thanks for the replies. Helps to know others have experienced similiar and shot on.
When looking under the front post through the hole under the FSB, the post still seems threaded into the base.
The spring loaded detent pin for the front post seems to be locking/engaging like it should.
The front post also makes contact with the sides of the base hole.
Would like it to have more contact though.
The upper half of the drum/wheel seems to be the culprit with the looseness.
Running through different elevation settings, the lower wheel seems firm, and the upper wheel is loose on the lower. Appears as if the contact surfaces and clearances where the upper and lower meet are a bit on the big side.
A knowledgeable AR shooter at the range said he's seen other AR's with different degrees of elevation wheel feel. Some tight, some too tight, some free, and mine the loosest of his experience.
Rifle shoots good. Am pleased with how it turned out.
Will try 100 & 200 yds this weekend.
Coyote Brown and Krylon Khaki look good. I need a matching puirse to go with it.