The 40x externally adjustable trigger, not the 40x 2oz on some BRs they build, discussed at length a week or so ago, often stops adjusting around 3lbs. Remington told me not to take it below 3.5. Below that, the stock spring floats and you no longer get consistent sear engagement. This causes the trigger pull to vary which is worse in my opinion than a slightly heavier, consistent pull. An example is as you come on target and start to take the slack out of your joints, you will occasionally fire the gun before your breathing, heart etc. are stable. Or the sear doesn't seat at all and it drops the pin, or worse yet fires, as you close the bolt. A lighter but longer aftermarket spring should be used as they maintain constant pressure if you are going that route. I haven't tried stretching and clipping the stock spring. You shouldn't have any loose slop in the trigger, it should be under tension.
If you are going to try for the lightest pull with the 40x, pull the action and watch the sear engagement with a loop or optical micrometer thru the inspection hole in the trigger side plates. I think Remington should put a longer, lighter spring in there or not sell that trigger. Once adjusted, I would put a capped cartridge in it and drop the bolt a bunch of times quickly and hard. This way you will know if it fired without pulling the trigger each time you cycle the bolt. My 700 .300 win mag failed this test at 3lbs 3 oz. It made light primer strikes without pulling the trigger and fired once. At one point I could drop the pin just by rotating the bolt up and down while putting forward pressure on the bolt handle.
To me, giving a person a screw they can turn and cause a misfire is wrong.
Or purchase a Jewell, Timney, etc that easily drop below 12oz.