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I have shot thousands of S&B small Pistol Primers and had no problems. S&B makes good Ammo and all test targets that are sent with your new CZ SP01 Shadows were shot using S&B ammo. Good enough for them, Good enough for me!
They work great for me as well with my 9mm handloads in my CZ 75 SP-01 Shadow. The only thing I have found is they are the toughest of all the primers I've used when priming on the upstroke on my Hornady L-N-L progressive. It takes a bit more effort to seat them and I have to be firm with the seating or else they won't seat deep enough.