Re: seat vld\'s to the lands or off a bit?
Rufous.... I like a 30 degree angle from a parallel neck to a parallel free bore area leading to a 1 degree throat. The amount that you place a bullet into the lands is affected by several things, whether you have a 3 groove, 4 groove, or six groove barrel. The angle of your throat, and how tight your free bore area is, will all affect how far into the lands your rifle will prefer the bullet to be.
I look at neck tension as an either/or situation. Either your hunting dangerous game and need significant neck tension along with needing to not stuff a bullet into the lands, or you're in a pure accuracy situation where you may optimize neck tension and bullet seating depth to maximize accuracy. In the ultimate accuracy scenario I think light neck tension is the way to go. I like about .0012 press fit into the neck. With light neck tension and the bullet seated about .005" longer than the round is if it is extracted before firing. In other words, chambering the round pushes the bullet back about .005" into the neck. This works very well with light neck tension.
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