Sorting bullets by bearing surface measurement is the pits. I have been seating bullets with the Davidson seating depth checker,using both nose and base pieces) increasing desired OAL by 5 thou, sitting loaded rounds straight up in my loading block, each row marked in one thou units above desired length, then lowering the Redding micrometer accordingly, one thou at a time. I am getting extremely consistent OAL's. Doesn't this method achieve the same result as measuring each bullet beforehand, and yet eliminate that time consuming sorting process?
Bearing surface measurement
- Thread starter tenring
- Start date
Bearing surface measurment is done to equalize velocity due to equal BS,equal pressure)...not to equalize seating depths.
The BS doesn't affect seating depth at all, because the point that contacts the seater stem is WAY ahead of the ogive.
If the seater stem contacted the bullet at the ogive, then different BS's might affect OAL.
JB
The BS doesn't affect seating depth at all, because the point that contacts the seater stem is WAY ahead of the ogive.
If the seater stem contacted the bullet at the ogive, then different BS's might affect OAL.
JB
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