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Re: Marks around case body - anyone recognise?
Posted: Mon Jul 27, 2015 3:02 pm
by rox
WelshShooter wrote:rox wrote:WelshShooter wrote:would it also require full length sizing in order re-use?
Is there another way? :)
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As opposed to just neck sizing.
Since this brass was initially fired in a different rifle to the next firing, it will definitely need Full Length sizing. Especially since it was initially fired in multiple/various different rifles. It will actually need small base full length sizing. But I'd do the same even if it was initially fired in rifle 'A' and destined to be subsequently fired in rifle 'A'; I gave-up neck sizing a while ago.
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Re: Marks around case body - anyone recognise?
Posted: Mon Jul 27, 2015 3:05 pm
by WelshShooter
rox wrote:Since this brass was initially fired in a different rifle to the next firing, it will definitely need Full Length sizing. Especially since it was initially fired in multiple/various different rifles. It will actually need small base full length sizing. But I'd do the same even if it was initially fired in rifle 'A' and destined to be subsequently fired in rifle 'A'; I gave-up neck sizing a while ago.
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Evidently it would've helped if I had noticed the bullet point text under your original pic, whoops. How come you've stopped neck sizing? Did you adjust your full length die to just slightly bump the shoulders back?
Re: Marks around case body - anyone recognise?
Posted: Mon Jul 27, 2015 3:39 pm
by rox
WelshShooter wrote:How come you've stopped neck sizing?
This calls for some more bullet points!
- I want to make accurate ammo.
- FL sized cases are more uniform.
- FL sized cases allow the case some wiggle room so the bullet can align in the throat (not necessary if you have a perfectly aligned chamber & your rounds have zero runout etc).
- FL sized case are more reliable (feeding and extraction).
- I can use the same process regardless or the brass source and intended next use.
- I can use the same process regardless of number of firings.
- I can FL just as easily as Neck sizing.
WelshShooter wrote:Did you adjust your full length die to just slightly bump the shoulders back?
Depends a little on the application, but I usually adjust for about 0.002" clearance or 0.002" under chamber min.
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Re: Marks around case body - anyone recognise?
Posted: Mon Jul 27, 2015 3:43 pm
by zanes
rox wrote:WelshShooter wrote:How come you've stopped neck sizing?
This calls for some more bullet points!
- I want to make accurate ammo.
- FL sized cases are more uniform.
- FL sized cases allow the case some wiggle room so the bullet can align in the throat (not necessary if you have a perfectly aligned chamber & your rounds have zero runout etc).
- FL sized case are more reliable (feeding and extraction).
- I can use the same process regardless or the brass source and intended next use.
- I can use the same process regardless of number of firings.
- I can FL just as easily as Neck sizing.
Oddly, I've found virtually exactly the opposite to you in the accuracy and ease of FL versus ease of NS points you raise since switching from FL to NS for routine loading of my .308.
Not bothered about the second and third points you raise as my experience of point one totally trumps them. Not run into reliability issues.
Re: Marks around case body - anyone recognise?
Posted: Mon Jul 27, 2015 3:54 pm
by rox
zanes wrote:Oddly, I've found virtually exactly the opposite to you in the accuracy and ease of FL versus ease of NS points you raise since switching from FL to NS for routine loading of my .308.
Not bothered about the second and third points you raise as my experience of point one totally trumps them. Not run into reliability issues.
I'm sure the debate will rage on, as it already has for decades. I'm equally sure that it's perfectly possible to get excellent results by either technique. I'm only moderately sure that most of the accuracy world has switched to FL sizing these days. And I can only speculate that if your results with FL sizing were noticeably worse than with neck sizing then something was wrong.
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