03-09-2020, 01:56 AM
JCSC Wrote:This is for an AR.
As I mentioned before, I havent taken my reloading past full length sizing. Why wouldnt consistent neck tension help accuracy in a gas gun?
Yes, I believe consistent neck tension helps accuracy, and is equally important in an auto loader as a bolt gun.
In an auto loader where the ammo is getting bashed about you need more tension to prevent the bullet being pushed back in or moving forward under inertia. If this happens, not only will the case/volume pressure change, but the bearing surface of the bullet shank is likely to change too. this means a change in starting and moving friction. I cannot see how any of this this won't affect accuracy.
I don't anneal but have tried it in the past but saw no improved results on the target. Maybe I was doing it wrong. Maybe it did improve results but I could not see it among the clutter of more influential variables (e.g. wind). Like 52 is saying, I do believe it helps prolong case life and depending on how much money you fork out for the kit has the potential to save money in the long run. It will help if finding cases for a particular caliber/brand is hard to find where you live.