10 pc take down

Some time ago I purchased a used 10 PC in 223, no box or manuals, I am in the process of working up some loads and decided to take it apart to see if it had the action is bedded. I can't get it apart. I removed the screw in front of the clip release, I also removed the screw at the rear of the trigger guard which just goes into the stock. But nothing moves there is another screw behind the magazine but I can't get to it, I assume the trigger guard and the magazine box are two separate pieces? Does one have to come out first?

Maybe this will help; https://www.youtube.com/watch?v=Pu36_0eEejU

If it is a bottom release, to remove the bolt in front of the trigger guard. You have to depress the trigger and the bolt release at the same time to uncover the action bolt.

I just found it thanks guys.