Guys i came across a handy exchange firing pin assembly for a Remington 700 (and Mauser 98) at the IWA.
It allows you to carry a loaded rifle in complete safety and to use an after market trigger that has no provision for a safety catch.
You cock the rifle by pushing the rear of the cocking piece forward which puts the firing pin under spring tension. If you pull the trigger the weapon will fire and you can cycle the action and reload and the rifle will be ready/cocked as normal. If you don't fire then you take up the pressure by pushing the cocking piece slightly forward and depress the decocking piece and ease springs. There are 2 versions, one allows you to lock the bolt closed,the other doesn't. It comes as a complete replacement firing pin assembly.