The Accurate Reloading Forums
Neck tension and "re seating"
12 January 2016, 08:31
EXPRESSNeck tension and "re seating"
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?
12 January 2016, 08:57
Sagebrush BurnsYour last sentence is what I would do to insure consistent neck tension.
14 January 2016, 05:28
woodsI 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
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There are those who would misteach us that to stick in a rut is consistency - and a virtue, and that to climb out of the rut is inconsistency - and a vice.
- Mark Twain |
Chinese Proverb: When someone shares something of value with you and you benefit from it, you have a moral obligation to share it with others.
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14 January 2016, 09:08
Canadian reloarderWoods: 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.
"300 Win mag loaded with a 250 gr Barnes made a good deer load". Elmer Keith
15 January 2016, 05:44
woodsYou 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

____________________________________
There are those who would misteach us that to stick in a rut is consistency - and a virtue, and that to climb out of the rut is inconsistency - and a vice.
- Mark Twain |
Chinese Proverb: When someone shares something of value with you and you benefit from it, you have a moral obligation to share it with others.
___________________________________
15 January 2016, 05:57
woodsHere
http://www.24hourcampfire.com/...php/topics/8805098/1it 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
____________________________________
There are those who would misteach us that to stick in a rut is consistency - and a virtue, and that to climb out of the rut is inconsistency - and a vice.
- Mark Twain |
Chinese Proverb: When someone shares something of value with you and you benefit from it, you have a moral obligation to share it with others.
___________________________________
15 January 2016, 05:58
ramrod340What I do in that situation is back the decapper out so it doesn't remove the primer. Then resize the case and start over.
As usual just my $.02
Paul K
15 January 2016, 22:36
SamAnd to think, for years Mexican Match ammo has been made just by pulling a bullet and reseating a better bullet on the powder charge.
A bad day at the range is better than a good day at work.