Originally Posted by
Dave Hoback
Sorry Robin, I should have said that better. I don’t alter the “ramp” itself. When the firing pin is “cocked”(ready to fire), the cocking piece rests on a flat shelf. But before being released and traveling down the ramp, the cocking piece must overcome a slight incline of the flat area. Those who don’t understand, look at your bolt and it’s quite clear. Overcoming this little raised bit by the cocking piece is a big portion of the heavy “lift” we feel. All I’m doing is removing a slight amount of that raised bit.
But it as I said, don’t do it unless you completely understand the entire function here! That little raised section is a safety margin intended to keep the cocking piece from slipping off the shelf area and down the ramp.(resulting in the firing pin actuating) It is very easy to take too much off here. But, done correctly, and you are rewarded with much improved bolt lift action.