Well, kind of a combined response and further question here...
I've used commercial Winchester in the past; don't recall the weights. Worked well enough that I don't see Lapua/Norma being worth the extra $$$, personally. I did have one batch of Winchester, though, that started separating about halfways up the case body after four firings or so. No, it wasn't a problem w/ the loading procedures. Got some new Winchester brass, it went over 10 firings w/ no problems. Wrote it off to a bad batch and called it a day.
Got some LC/WCC from River Valley Ord a few years ago... pretty good stuff, primer crimp properly removed, sized, trimmed, etc., pretty much good enough to load and shoot if a person wanted to.
Last batch out of RVO was shortly before the owner passed away, and was definitely not up to snuff. Primer crimps mostly still there, big nasty scratches, dents, and gouges on the cases from grit getting in the process somewhere, uneven case lengths, and the cases were huge, like they'd been fired in a SAW or something. Got some Scharch... same story, different company. No scratches and gouges, but even bigger bodies if it was possible! F/L sizing these feels like sizing a .30-06 case instead of a .223!
I'm about 1/3, maybe a little bit more, of the way thru F/L sizing and swaging 3500 cases of this stuff. I fully processed about 500 cases which is what I'm shooting right now, though I've had a couple split and crack already, either along dents in the body that I thought would iron out OK, or at the necks.
I'm very seriously starting to consider just taking this stuff either down to the recycling center (someone said brass is up to $0.60/lb or so) or else 'donate' it down at the local gun store... put it next to the consignment table and put a sign 'Free for the taking' on it. Brassman Brass has some once-fired Winchester commercial stuff for $26/1000, and OK Weber has new for $12.75/100...
Whaddya think?
Monte