Originally Posted by boomtube
I'm not sure what you mean.
How/why do you have a Redding Mic seating stem in a Lyman die? The really effective part of the Redding Comp seater is the full length inner sleeve that aligns the case to the bullet before seating begins. A calibrated Mic head is nothing but a user aid, it doesn't do a thing to improve the average quality of your reloads.
What do you mean about Berger's "recommended" OAL? If you mean what shows in Berger's manual all that tells you is the length they used to develop the listed data, it has no other meaning at all. Each of us has to find our own best OAL for accuracy and/or lowest velocity ES.
I purchased the Redding VLD seating stem because I have heard that using a standard stem will crush/dent a Berger bullet upon seating. I went with Lyman because that is all I could get my hands on, thanks to our prez.....
As far as OAL goes, I have measured with a COAL guage and then added/minused from there in the increments listed in Berger manual. The problem I am having is that my longest OAL has about bottomed out the stem adjustment into the die. I have set the die correctly, but I have to crank the stem all the way in. I hope this will shed a little more light on my issue....