How much seating depth, in the neck, is required for a proper amount of neck tension. Excuse my lack of knowledge, proper terminology, and spelling. I am just an dumb ole hillbilly.
The gun that I am refering to, is a 6.5-06 that I had built a couple of years ago for 1000 yard praire dog shooting. I just purchased a Stoney Point seating gauge, and started looking for a magic load, starting with finding my length to the lands. I am shooting this rifle single shot, and had it perminatly fixed with a follower, so recoil effect on the rounds in the box, are of no concern.
I have heard that the old rule of thumb, is that the bullet should be seated in the neck, at least the diameter of the bullet. Is this a good rule of thumb, or is this mainly for repeater rifles?
The reason this subject came up is that I noticed in order for me to seat my 140Gr A-maxes to touch the lands, I would only have approx. .120 bearing surface. Is this sufficiant? I can not even use the 140VLD's as I would have far less bearing surface making contact. I was pretty upset in this finding, since I had invested a lot of money in this rifle, and I expected perfection. I forgot to add that I have only shot this rifle, maybe 250 rounds, so there should be no throat errosion.