See my recent thread about Wolf .40 ammo and squib rounds... the steel case split and caused me a massive hassle.
Just to set the record straight, Your post was/is incorrectly titled, as it was not a squib, it was a stuck case that had split.
It can happen with any type of casing, brass or steel. Your incident is hardly a common occurance with new factory loaded steel cased ammo.
In every incident of case failure I've encountered in my lifetime of shooting, whether it was case head separation(split at the web around the circumference), split mouths or necks, blown primer pockets, case rupture the offending case has been brass.
As for Wolf ammo, I've been using it since it was first introduced in this country and stated back then that it would sell well and it has.
There are far more successful users of Wolf ammo than not and if it were such a poor or undesireable product, the shelves of every place that sold it would be piled high with it. This is not now and never has been the case over the years.
There are many guns with chambers that are tight, incorrectly machined, coarsely surfaced, ect. and just because Wolf ammo doesn't work in them is not a reflection on the ammo's quality. Personally, I wouldn't favor owning a gun that wouldn't shoot Wolf ammo reliably.
Yes I've had a stuck case with Wolf, but I've also had them with brass cased ammo......it happens, NO ammo brand is perfect 100% and it was more a case of a dirty chamber that I had neglected to properly clean.
The first squib I ever encountered was with Winchester ammunition and it cost me $39 for a new barrel on a subgun. Kind of hard to let off the trigger in time at 1800rds a minute firing rate. I have never had a single failure to fire or squib round in any caliber of Wolf ammo.....ever.
As for parts wear, the price difference between a case of Wolf and a case of not even premium brass cased ammo would buy enough extractors for any gun to last more than a lifetime of any shooter.
Most of the myths surrounding Wolf ammo and parts wear are perpetuated by people who have never fired a round of the stuff because they don't trust it, yet they'll continue on the complaints of others.
I've used tens of thousands of it in several calibers and several guns and have yet had to change out an extractor.
YMMV, I'll buy Wolf ammo as long as its available at a reasonable price.