The Accurate Reloading Forums
FL resizing new brass ??
20 March 2009, 16:45
alf1960FL resizing new brass ??
I have always FL resized new brass before using it the first time. I was wondering if this was necesary or could I just neck size? It will be shot in a bolt action rifle. Your thoughts?
Alan
For new brass, I only neck size. And I've never had any problems chambering rounds.
Don
20 March 2009, 17:34
alf1960Thanks, I`m going to give it a try.
Alan
20 March 2009, 21:57
krakyI've got a couple of lyman M dies...just a mandrel in a die. Don't even have to lube virgin cases...just plunge them onto the mandrel and withdraw the case.....it will have a nice perfectly round case mouth/neck with about .003" grip. Runnout winds up being quite good doing just this....after the first firing of the brass is when I do more work to keep the brass a bit more uniform.
20 March 2009, 22:06
vapodogquote:
Originally posted by DMB:
For new brass, I only neck size. And I've never had any problems chambering rounds.
Don

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20 March 2009, 22:34
ted thornYou can do either full or kneck they both work. I usualy FS mine.
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21 March 2009, 05:32
woodsYou can set your die to FL size and it will only neck size new cases anyway. So just neck size and straighten up the necks for the first firing.
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21 March 2009, 05:55
Jim C. <><quote:
I was wondering if this was necesary or could I just neck size?
Is FL sizing "necessary"? No. But, why not? It would make sure it's all the same, it's easy to do and you already have the tool (die) mounted to do it. ??
21 March 2009, 21:03
phurley5I have been reloading extensively since 1973. I shoot 3000 plus rounds per year, with rifles of all sizes, I have never resized new brass, see no need to, and don't intend to start. I shoot for greatest accuracy and this is usually with once fired brass, not always, depends on the barrel and chamber. Good shooting.
phurley
22 March 2009, 06:15
GrumulkinWith one exception that I don't need to go into, I never resize new brass. The most I do is chamfer the case mouths.
quote:
Originally posted by woods:
You can set your die to FL size and it will only neck size new cases anyway. So just neck size and straighten up the necks for the first firing.
That's why I only buy two die sets. The F/L die so adjusted gets the job done.
The reason for doing the neck sizing on new brass is that the cases don't have perfect necks, some are deformed more that others. By doing the neck size on new brass, you have consistent neck tension on seated bullets with all of the brass from the git-go.
24 March 2009, 22:54
ChadTRG42Sometimes you have to size or clean up new brass. The necks of factory Rem and Win brass is often dinged and out of round. I will run them just far enough up into the die to get the expander ball to round out the case neck. Otherwise this will vary your seating tension. More expensive brass (Lapua, Nosler, Norma) does not requite this step, and is normally ready to load.
I also chamfer the inside of the neck, since most new brass has a slight burr. This will keep from shaving the bullet when seating.
Chad
Custom Reloads of Dallas
24 March 2009, 23:13
seafire2quote:
Originally posted by DMB:
For new brass, I only neck size. And I've never had any problems chambering rounds.
Don
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