i was visiting varmint als web site the other day and was reading what he does and doesn't do when reloading.one thing that cought my attention was that he never full length sizes his cases after there fire formed.new cases he full length sizes,trims, primer pocket maintanence and the usaul. once there fired he only neck sizes and all the other normal steps except full length resizing.this makes sense to me becouse after full length sizing you no longer have a fire formed case for that rifle.any of you high tech reloaders out there,what are your thoughts on this.is neck sizing only make for better accuracy??

I would buy a case comparator tool and neck size and partial size the case shoulder .004 and that would be it if using the same cartridge in the same gun.

...depends on the rifle. On an action that has some "spring" to it, I would say full length size. On an action that doesn't have that spring to it, then neck sizing MIGHT give you better results. It's no guarantee, though... One thing to consider for hunting ammo, is the "Murphy" factor... anything that can go wrong, will... and at the worst possible time. If there is a blade of grass, a thread, whatever.. that gets in with a neck-sized only cartridge, then you have the potential for failure to chamber...or extract. If you want 100% reliability, then I say full length size.

"Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it." Santayana

yes i can imagine that a fire formed cases would be tight fitting.so in other words,full length sizeing is the way to go for hunting loads.i'm a stickler for accuacy but i'm just trying to figure out what worth doing and whats a waste of time.human error is a big factor during hunting situations,but i want my rifle to be very accurate.that way if(or when)i do miss i know it was all me and not the rifle.

I neck size for all of my bolt action rifles all the time. If I use new brass I make sure the case mouths are round by runnning just the the expander ball through them, make sure they chamber, accurize them, load them, and fire form them. I spoke to Remington and they said, "There is no need to full size there new cases they have already been full sized just true the case mouths". The only time I would full size for hunting is if I was hunting dangerous game. Good luck.

I think alot of folks dont adjust their full length dies properly. When done correctly there is usually very little sizing done to a fired case. Neck sizing or full length sizing both work fine as long as the loaded round is straight, and the bullet is sitting in the chamber square to the bore. If you have a full length die set to size more than needed for your chamber, then the bullet wont be square to the bore. And if you neck size with a die that pulls the neck out of concentricity the same thing happens. The issue isnt whether a case is full length or neck sized, but whether or not it is straight and a good fit in the chamber that it was loaded for. That can be done with either die, and it can be missed with either die too.