while having some issues with a Forster die and some CEB bullets I found myself having to re-seat a fe bullets I was getting ready for a freebore accuracy test.

But I wonder if the fact that some of the bullets were pulled then put back into their case will have different neck tension and shoot differently?

I could test this by repeating the test but they are all in series of different OALs so that on't be possible either.

Would the safest thing to do be pull them all and run them through the sizer die again?

Your last sentence is what I would do to insure consistent neck tension.

I did some testing and found that inside neck diameters were amazingly consistent from seating and pulling bullets

http://www.longrangehunting.co...neck-tension-115134/

The bullets make very consistent expanders and springback is consistent as long as the necks have the same thickness and work hardening

Woods: Read your thread at long range hunting. Real good info. Am I to take from all of this that you really can't have too much neck tension, only too little. As long as nothing gets deformed.

You can only have "so much" tension. Once you reach the elasticity of the brass, you will get a specific amount of springback. That depends upon the brass physical characteristics like work hardening or thickness and not on how much you are expanding the hole. IOW it doesn't matter whether you are expanding the hole .003" or .010", the springback will be the same.

But I am no scientist, only a shadetree reloader

Here

http://www.24hourcampfire.com/...php/topics/8805098/1

it worked out for kraky after I talked him into it. MOF seating/pulling/reseating would make an excellent method of sizing consistent inside neck diameters if it wasn't such a PITA

What I do in that situation is back the decapper out so it doesn't remove the primer. Then resize the case and start over.

And to think, for years Mexican Match ammo has been made just by pulling a bullet and reseating a better bullet on the powder charge.