Quarterback Kent Smith, wide receivers Rick Gatewood and Burl Toler, tight end Derek Miller, cornerback Dennis Davis and kicker Tim Duncan were all let go by Oakland, one day after the Raiders made their first cuts of the preseason.
On Monday, the Raiders released quarterback Reggie Robertson, tight end Marcellus Rivers, offensive lineman Rod Green, cornerback Raymond Washington, kicker David Kimball and punter Scott Pakulak.
''It's tough, it's a tough thing,'' Raiders coach Art Shell. ''It's not easy. Guys walk into your office and you tell them, 'Thank you for giving it your all.' They're a part of your team, part of your family, and to tell them they're not good enough at this time that's hard.''
The Raiders play at Seattle on Thursday then must remove another 22 players from their roster by Saturday to get down to the 53-man regular season limit.
''There are guys that still have the opportunity to show what they can do,'' Shell said. ''They'll play on Thursday night and we'll see what they do. You pretty well have a feel for who is going to make it and who is not going to make it. But there are always two or three guys who are sitting there that will make you make a decision.''
* Left guard Barry Sims, who has been nursing a sore elbow since late in training camp, practiced Tuesday but will not play against the Seahawks on Thursday.
''(We're) just being cautious with him,'' Shell said. ''I don't want to push it. He wants to go. He thinks he can go. I believe he can go. But we'll be a little bit cautious. We'll get through this game without him, and he'll be ready to go against San Diego.''
Kelvin Garmon started in place of Sims last week against Detroit.
* Quarterback Andrew Walter threw without any limitations in practice Tuesday and is expected to play against Seattle. Jeff George, who signed with the Raiders on Monday, took reps with Oakland's scout team.
* When asked what role that left for Marques Tuiasosopo, Shell said, ''Tui's a quarterback. His role hasn't changed. He's working. George is working with the scout team. Tui's working with the team.''