I am sure this info can be found on other places online, but the way I am going to show you is the simplest and fastest way to adjust the trigger on a M700. When done correctly this gives a very clean crisp trigger pull on the factory trigger. You can also adjust the trigger to a very light pull within reason. Care needs to be taken on doing this though. A super light or “hair” trigger should not be used on a hunting gun.
I, nor loose rounds take any responsibility for you breaking the trigger, messing it up or shooting your self or friends from negligence after using the information given below.
Here is a rough picture I have drawn to give you something to look at to keep it in perspective. Obviously this is a crap rendering, but you get the idea.
Be sure the gun is unloaded and pointed in a safe direction and in a place safe to be working on the fire arm.
Be sure to remove the sealant from the adjustment screws.
To adjust trigger.
1. Engagement screw: with the gun cocked and safety off, (and unloaded!) turn clockwise until sear releases. Turn counter clockwise for 0.012″ engagement
2. Overtravel screw: With gun cocked and safety off, turn clockwise until the screw stops. With the trigger depressed. turn counter clockwise until sear releases with 0.005″ of over travel. The gun will dry fire at this point. Once it does, I find this to be just right.
3. Poundage screw: Turn counter clockwise for less weight of pull. Adjust it to a safe poundage.
The way I always test to make sure it is set to a safe poundage, is I put the gun back together, cock the action then drop it at least two feet onto a hard flooring. I hold the barrel of course so it does not fall over. Or, you can rap the butt stock on the recoil pad smartly. I prefer to drop it onto the recoil pad from a foot or two. If the gun dry fires, it is too light, if not, you are good to go as long as its the pull weight you want. Working the action sharply is a decent test. IF it is too light, working the bolt fast and sharp will also cause a firing. Test it thoroughly to make sure you got it a safe weight. I do not recommend it to be under 3 pounds for something you are going to walk around in the woods hunting with. A light trigger also takes some getting use to if you do not have experience with them, even just shooting from the bench. S0 be careful.
After you test to make sure its safe, reseal the trigger adjustment screw. Finger nail polish or primer sealer will work for this. Clear finger nail polish is always what I use. Lightly oil an put it back together. It is as simple as that and will give you a trigger as crisp and light and will give you good service for anything other then pure Benchrest NBRSA competition.