Personally I've come to prefer the 105/5 that my Mausingfield has.
You don't win matches by running the bolt fast. You want to run the bolt smooth and deliberately, not as fast as you can. I shoot much better when I shoot smooth and deliberately. Look at top shooters such as Matt B. Or Dave Preston - they run the bolt smoothly, they are not rushing that bolt closed.
The 105/5 (aka cock on open), allows the sight picture to be undisturbed when closing the bolt. As you are opening your bolt, your sight picture has already been disturbed from recoil. Then, as you are smoothly and deliberately closing the bolt, you are getting your rifle back on target and settled in and if done right you are ready to send one once the bolt is closed.
I don't buy into the speed argument, and why I think 60° actions are more of a gimmick than anything.
You don't win matches by running the bolt fast. You want to run the bolt smooth and deliberately, not as fast as you can. I shoot much better when I shoot smooth and deliberately. Look at top shooters such as Matt B. Or Dave Preston - they run the bolt smoothly, they are not rushing that bolt closed.
The 105/5 (aka cock on open), allows the sight picture to be undisturbed when closing the bolt. As you are opening your bolt, your sight picture has already been disturbed from recoil. Then, as you are smoothly and deliberately closing the bolt, you are getting your rifle back on target and settled in and if done right you are ready to send one once the bolt is closed.
I don't buy into the speed argument, and why I think 60° actions are more of a gimmick than anything.