You need to have someone watching you shoot to know. You may be relaxing your wrist on some shots, allowing the gun to twist in your hand. This absorbs the energy needed to help throw that brass out to the right. Try shooting it from a supported rest. If it still does it call Ruger. They will take care of it.
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"It is easier to get out of jail then it is a morgue"
Live long and defend yourself!
John 3:16