Re: Bullet Seating Confusion
First, you have a typo, 2.860, not 3.860. And yeah, you must be doing something wrong if with the same bullet 2.860 puts you into the lands but 2.917 does not. I assume you are using digital calipers, were they zeroed for all the measurements?
It is common that you will be over listed OAL when you hit the lands. OAL is a suggested length that will likely chamber in all production rifles without hitting the lands. If you run into the lands there will be a pressure spike. Commercial bullets will run up to the SAAMI OAL so they chamber without issues. No guarantee that .001 will be most accurate. Some bullets like to start with a jump. In a hunting round I don't like to get that close because with case expansion from heat you may jam it into the lands.
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