to BIG TEN, it's a rifle basix trigger, through some modification on my "f" model, i can only get the stock non accutrigger down to about 2lbs 7 oz. before the bolt doesn't stay in the receiver and the trigger doesn't hold the pin back anymore.

to BARYNGYL, i tried a few weight and rimthickness lots, 1. takes too long, might as well buy a better grade of ammo at that point. 2. it produces way too many ammo lots and too less amount of rounds in each to be practical. 3. those lots i did do both to produced even tighter groups, but seemed impractical (for me anyway) to continue to do both.