I bought a barrel from Benchmark in 6.5 creed for my German SSG3000 and love it. The best thing is that it puts 5 shots of 6.5 American Gunner into easily 1/2 MOA groups at 100 yards.
Re: Geissele vs. Timney triggers
The Geissele is combat proven. I have both but I like two stage triggers and trust the Geissele more though I not had any issues with the Timney.