I dont think I have ever fired a Wolf round in one of my .45s or .40s. That does not mean I have not seen plenty of it shot.
When Wolf first came out we saw a good bit of it amongst the students. In .45 and .40 S&W, regardless of gun designs I saw quite a few malfunctions and they went away when students quit using the Wolf.
I think there was something wrong with the case dimensions on the first shipments of Wolf as we had quite a few that would not actually chamber (unless you smacked the back of the slide hard) on some gun designs (Sig, H&K, Witness and Kimber) to get the slide to go into battery. That disappeared on later lots. We still see more malfuncitons with it than with any other brand of ammo other than possibly Blazer aluminum (aluminum however does not break extractors).
All of the above just points out that there were some problems that seemed to relate to the ammo. It does not mean that everyone who uses or used Wolf or other steel cased ammo had problems.
My experience in rifles has been less than stellar.
Early on I purchased a case of Wolf steel cased in .223. It would work in one of my Colts (an HBAR) and would not work in the my duty Govt. Carbine - which has a 5.56 chamber which should not be as tight - It would leave the case completely in the chamber.
I gave the case of ammo to a local game warden who took it out west to shoot vermin with his Mini-14. While it was very inaccurate, it did seem to funciton.
Wolf .308 did the same thing in a friends Bolt action .308. It was a Howa (same as Weatherby Vanguard) which has an excellent SAKO style extractor.
.22 Steel cased Russian ammo did not work in any of my 3 Colt Woodsman autos nor my Walther PPK/S (but then very little worked in that gun).
Any time a round is left the in the chamber it is time to inspect the extractor to see if it is broken - in both cases above there was no damage but I will never fire steel cased ammo in them again.
I dont hesitate to use it in my SKS or my AK as the taper is generous and they have really solid extraction systems (moreso than any pistol).
Dont know if this helps. Just random experiences.
I dont know what Wolf costs now, I have not priced it since the early days, but it was never much less expensive than Blazer (which I dont care for that much either). Blazer Brass has been running about $13 a box of late at Wal-Mart. That works in my 1911s but I have seen it fail in other guns which I know work with Winchester, Remington or Federal so I am not 100% sure on that - I have been shooting a good bit of it but the jury is out.
Jim H.