Before buying a Ruger Single Ten I did a lot of research on the gun. Apparently several people had issues with Remington Golden .22 LR locking the cylinder down. Add me to the list. The Federal did fine, but not the Remington in my wife's new gun. Either Ruger's tolerances are very tight, or Remington's ammo is out of specs. Either way, I'll try to stick to something else.