Since 2006 I have shot Wolf Ammo almost exclusively in my AR15-pattern firearms and have done so virtually without issue.  I have fired upwards of 3,000 rounds/year (aggregate) in my carbines, with the majority of that shooting done with one Colt 6520 (see Tale of Two Rifles and Back In Black elsewhere on this site).  I run Wolf for a thousand rounds or so without cleaning and don't run into any problems until I'm very deep into that thousand round count. Even then I've never encountered a stuck case that didn't' come out with mortaring, and I've never seen a stuck Wolf case in a Colt that required a rod to pound it out.

How do I do that?  Isn't Wolf supposed to be the WORST thing you can to do an AR?  Isn't it dirty, smelly, bad for the gun, corrosive (no), and just generally a bad idea?  Why don't I have those problems?

My suggestions for anyone looking to shoot a lot of steel cased ammo:

-make sure you have a 5.56 chamber. if you can't be sure of the chamber then have it reamed to be sure.
-you need to have a well-gassed gun. LMT and a few others may have tight gas ports.
-you need to tune your action spring and buffer to the lighter load.
-you need to deal with your extractor tension. A good 5-coil spring, black buffer, and possibly even an O-ring.
-you need to lube the hell out of the damn gun, specifically the BCG. Buy a large bottle of Slip2000 EWL and hose down the BCG before you shoot.
-you need to clean the gun more often. If you're at a 3-day class and you want to be sure that the gun will run every day, I'd clean the BCG and chamber every night. Buy some Slip2000 725 Cleaner/Degreaser and hose down the BCG and chamber, and hit the chamber with one of an M16 & AR15 Chamber Brush. You may want to consider popping off the extractor and cleaning under it as well as the bolt face.

If you're the kind of person that can accept a thing at face value, take advice from those that have gone before you, implement said advice, and be happy, then the above is probably where you can stop reading.  If, however, you are a "why" or a "how" kind of person, I'll attempt to go into further detail below.