Wally world recently reduced the price on RWS 9mm from ~$17 to <$13, so I was going to pick some up. But research online came up with posts about it having a steel jacket plated with copper, so it will fail the magnet test.
Range I favor doesn't allow steel core, so not going to risk buying something that fails magnet test, even if it's just steel jacket. It's quality ammo from everything I've read, and cheaper that the 50 rd WWB at Wally.
If your range doesn't care/check, no problem. But if they do, might want to check if they do the same with the bullet they use on their 380 ammo.
The RWS 380 Auto ammo that I saw had a brass jacket and was not steel. The Russian LVE 380 ammo that I bought to test out of a PPK was copper washed and did have a steel Jacket. I suspect that much of what is posted on BB's is rumor.
Seems as if the RWS/Geco ammo would be no harsher than firing Golden Sabre JHPs (which uses cartridge brass jackets) down your bore. "
I wouldn't recommended steel jackets down a rifle bore at 3000fps but you have no worries,especially out of a pistol with a manufacturers recommended lifespan of only 9,000 rounds with lifetime replacement.
RWS is a quality manufacturer. I've had one of their adult air rifles and have used their pellets in .177. I use their #11 percussion caps for my .50 cal. BP side lock rifle. I recently bought 100 rounds of RWS in 9mmm but haven't fired any as yet.