O.K Joaquin, I am not replying to be argumentative, simply to clarify matters for other forum members reading this thread. There may be some who are considering a similar build and find this information useful. You are trying to compare apples to oranges.
The actions you are referring to are the ROUND actions. They are the cheaper Rem700 clones without the integral recoil lug and scope rail. Surgeon started making these to offer a cheaper alternative to "their" actions. I would never use one, my thinking goes if you are going to buy a Surgeon round action, you might as well cough up a little extra and do it right. It's not that much more when you consider still having to buy a base and recoil lug. The bases I use are $200.00, and a good lug is $25.00.
I am making reference to the original "Surgeon" actions, and not the Remy's. So the information in my above post is correct. If you are going to go with the good Surgeon actions, your choices are the long at 58oz's (which Surgeon calls their XL action), and the short at 34.6oz's. The reason their XL action is so heavy is because it is a beefy flat bottom action with integral recoil lug and and scope rail. You have to remember that the weight of the action (the Surgeon actions and not the round clones) includes the lug and rail.
Anyway... I hope this clarifies things. I think this conversation also clarifies why I wanted to build a .284 on a short action. I really wanted to use a Surgeon, and the SA turns out to be ideal.
Here are a couple images of the two actions I had to choose from when building my rifle.
Surgeon XL action (58oz's)
Surgeon SA (34.6oz's)