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Full length case sizing

This is a discussion on Full length case sizing within the Reloading forums, part of the Firearm Forum category; A fellow shooter recently gave me a bag of primed brass which had been prepared by one of his reloading friends. When I examined the ...


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Old January 10th, 2017, 11:29 AM   #1
 
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Full length case sizing

A fellow shooter recently gave me a bag of primed brass which had been prepared by one of his reloading friends. When I examined the brass at home I noticed scratches on the cases so I miked them to check the sizing. They had obviously been only neck sized and then trimmed to the max OAL as according to the manual. They went into the chamber ok but needed a bit of oomph to seat and lock the bolt. I resized and trimmed them all to make them fit my chamber but I am asking the group- Do you full case size ALL of your magnum reloads?



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Old January 10th, 2017, 11:32 AM   #2
 
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Yes.
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Old January 10th, 2017, 11:49 AM   #3
 
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Yes
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Old January 10th, 2017, 01:44 PM   #4
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I always recommend full length resizing for all cartridges with one exceptions, ... neck sized only cartridges will only be fired in the same rifle and then only a bolt action rifle that is used for target shooting.

What do you gain with neck sizing only? Probably a little longer case life and possibly a little better accuracy. Because neck sized cases don't chamber as easily as full length sized cases, it is generally a poor idea to use neck sized cases for hunting and it's an especially bad idea to use neck sized cases in anything but a bolt action rifle. All it takes is a mis-feed to ruin a once in a lifetime hunt.

My answer to the question is obviously "yes" only I would extend it to include non-magnum cases as well.
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Old January 11th, 2017, 11:06 AM   #5
 
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I value your opinion. I full size all my reloads, but in this case I did not want to look a proverbial gift horse in the choppers... Since we built the long range here we have attracted a multitude of long range shooters from all over the province. Most of the ones that I have run into only full size the first reload and then neck size the rest.. I don't understand the logic because you are running the press anyway, why not wax up the case and make sure it is true? Each to their own, but it only takes a few seconds to wipe down the cartridge and check the length. Just wanted to confirm my process with my southern peers. THX!
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Old January 11th, 2017, 11:18 AM   #6
 
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Quote:
Originally Posted by Danad View Post
I value your opinion. I full size all my reloads, but in this case I did not want to look a proverbial gift horse in the choppers... Since we built the long range here we have attracted a multitude of long range shooters from all over the province. Most of the ones that I have run into only full size the first reload and then neck size the rest.. I don't understand the logic because you are running the press anyway, why not wax up the case and make sure it is true? Each to their own, but it only takes a few seconds to wipe down the cartridge and check the length. Just wanted to confirm my process with my southern peers. THX!
Neck size only for the reason iowegan said. The case is fire formed for that rifle's chamber. SO if it is to run only in that rifle it fits that rifle.
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Old January 11th, 2017, 11:29 AM   #7
 
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Just an example of a specific issue...please don't yell at me for "improvising" to save money...

I have a 7mm 98 Commercial Mauser that has a minor headspace issue...I have choices about turning back the barrel or rebarreling or doing what I do....I shoot it one time and it forms to the chamber...I get a very slight "push" of the primer and it sits very slightly proud. I then prepare the cases and I neck size, trim, etc and load...I double check by running each round through the rifle to verify fit...have had near 100% success with this and after this process I show absoutely no indication of a generous head space....I'm super careful with any indication of head separation indications...I would not attempt to use these custom fit cases in any other rifle.
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Old January 11th, 2017, 12:51 PM   #8
 
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To FL size (plus other case prep), or neck size . . . that is the question.

There are many benefits to the "neck sizing" approach and at least some have been stated previously supporting that approach. But only complete FL sizing (and any required case prep) will return the cases to the same point each time. The "neck sizing" approach in almost all cases will eventually require a FL size, and produce a different case when done.

Whether that matters and whether it matters to you is based on your needs, experience, and judgement.
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