Silver Bear ammo I buy by the case in 9mm.,.223, and 9x18 for the Makarov.
The 9mm. ammo goes through the two Ruger 95s, SIG 225, and the Taurus PT111 Mil/pro without a jam or malfunction.
Accuracy groups have been from 2.5- 3 inches in all the pistols at 25 yards.
SilverBear ammo is steel cased with a nickel coating to help with corrosion and function of pistols.
Brown Bear ammo has a zinc coating on the steel case and helps with functioning through the action of the gun.
Golden Bear ammo has another coating for the same reasons.
After many of thousands of rounds through the various firearms no signs of accelerated wear and tear have been noticed.
Each firearm is a case by case basis. What works well in my PT111, for example might not work in yours. Just like no two autos perform exactly the same the this is also true for guns.
Russian quality control is good, but not always up to U.S. standards. There have been however general satisfaction by us who have used it regularly. There have been some reports( happens with U.S. made ammo,too, as of recently yet) of small batches that did fail. Those were disposed of or recalled and replaced with fresh ammo that works.
They need the rubles and updated their quality control in the last few decades. The U.S. is one of the top three ammo purchasers of Russkie ammo.
Here are some blasts form the past about SilverBear and company.