I've used Wolf LP's in .45 Colt, SP's in 9mm and .38 Special, and SR's in .357 Magnum and .30 Carbine (for a Ruger Blackhawk.) No problems with any of them. Like I said before, the SR cups are really thin; I wouldn't trust them for high-pressure rifle ctgs, but the SRM's and .223 primers should be fine.
$30/k is kind of high, but primers are scarce right now (rumors are that they are starting to show up on the shelves again) and it beats paying $50 for CCI or Federal primers.