Effects of varying amounts of neck tension

[TimK]

I'm wondering about the effect on accuracy of varying amounts of neck tension. I'm currently running only 0.001" tension on a .308 for some reasons I won't bore you with. I've just ordered a bushing 0.001" smaller. Should I expect improved accuracy? Is it possible to have to little tension?

 

[former naval person]

Re: Effects of varying amounts of neck tension

YES. Too little and you can push the bullet back into the cases when feeding. OR...when you try to run a compressed load, the OAL will vary all over the place because the bullet tries to creep out.