Re: Crazy neck tension h_e_l_p!
Do you mean trimmed or turned the necks to various thicknesses? For sure, turning the necks to various thicknesses will lead to inconsistent neck tension. Trimmed to various lengths within .003 or so will have no effect. You can seat bullets by hand, but you are probably going to lose some pressure when the bullet starts. Are the Hornady dies the bushing type? What bushings have you tried? If bullet tension is that light, you may have a problem when withdrawing a live round - the bullet may lodge in the bore and you could have a lot of powder spilled all over the action.