I thought i'd have a 303 reload session today and used some cases (PPU) i'd already prepared few months back.Before i reprimed them i though i'd just try slipping a bullet in the neck and found it dropped straight inside! I know i definetly wouldnt have resized it so little so my question is-does brass have memory so it goes to its initial size over time?
It wasnt a big deal because all i did was simply resize them again,but am just curious.
Neck sizing
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Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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saddler
Re: Neck sizing
No memory from my experience reloading (almost 30 years to date...)
I've neck sized 303 and not had the case neck expand in the 4 years the cases were sitting idle
I've neck sized 303 and not had the case neck expand in the 4 years the cases were sitting idle
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saddler
Re: Neck sizing
naughty zippySteve wrote:Ooooo'er! I cant work it out then! :lol:
[youtube]http://www.youtube.com/watch?v=FW6_6Nxq ... re=related[/youtube]
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Steve
Re: Neck sizing
Blu wrote:Steve, which make of dies are you using to neck size?
Blu
Lee.
I havent had a problem previously when resizing and once i resized then again the cases were fine.
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Tower75
Re: Neck sizing
From what I've been told, by those older and wiser then I, is that .303, for some reason, is very "springy", in that it's not uncommon to run a .303 case through a sizer, only for the neck to go "Nope, none of that" and "spring" back to roughly its fired size.
The first few sessions of reloading .303, I found that about 10% of my home loads would have "spung" necks after I had run them through the FL sizer, I only found out when I seated the bullets and I could actually spin the bullets in the case necks - I, being a novice reloaded, started to ask around, as my theory was; if the problem was "me", then all the cases would have sprung necks, not just 10% of the completed batch. That's when I was told about the "springiness" of the .303 brass.
What I do now is run all cases through my FL sizer, then neck size them, too. *Knock on wood* this seems to have solved the problem.
Feel free to call the above cobblers, that's only what I was told.
The first few sessions of reloading .303, I found that about 10% of my home loads would have "spung" necks after I had run them through the FL sizer, I only found out when I seated the bullets and I could actually spin the bullets in the case necks - I, being a novice reloaded, started to ask around, as my theory was; if the problem was "me", then all the cases would have sprung necks, not just 10% of the completed batch. That's when I was told about the "springiness" of the .303 brass.
What I do now is run all cases through my FL sizer, then neck size them, too. *Knock on wood* this seems to have solved the problem.
Feel free to call the above cobblers, that's only what I was told.
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Steve
Re: Neck sizing
Tower.75 wrote:From what I've been told, by those older and wiser then I, is that .303, for some reason, is very "springy", in that it's not uncommon to run a .303 case through a sizer, only for the neck to go "Nope, none of that" and "spring" back to roughly its fired size.
The first few sessions of reloading .303, I found that about 10% of my home loads would have "spung" necks after I had run them through the FL sizer, I only found out when I seated the bullets and I could actually spin the bullets in the case necks - I, being a novice reloaded, started to ask around, as my theory was; if the problem was "me", then all the cases would have sprung necks, not just 10% of the completed batch. That's when I was told about the "springiness" of the .303 brass.
What I do now is run all cases through my FL sizer, then neck size them, too. *Knock on wood* this seems to have solved the problem.
Feel free to call the above cobblers, that's only what I was told.
Thanks for that-atleast i know im not loosing the plot! I only reloaded 20 rounds and it were 6 cases which had sprung out of size.
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meles meles
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Re: Neck sizing
We hear Albert Pierrepoint is a bit of an expert on this...
Badger
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Quidquid latine dictum sit altum viditur.
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CEO (Chief Excavatin' Officer)
Badger Korporashun
Quidquid latine dictum sit altum viditur.
"Quelle style, so British"
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Steve
Re: Neck sizing
The hangman?meles meles wrote:We hear Albert Pierrepoint is a bit of an expert on this...
Edited to add:
Ok,the penny dropped.I never clicked until afterwards. :lol:
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