In which order?
- Thread starter John S
- Start date
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Big Al
Guest
Only anneal after the work on the brass, before you load. Anneal after all work on the brass is finished.
J
jo191145
Guest
I anneal first then size.
Annealing will roughen the inside of the neck especially if you quench in water.
Sizing afterwards allows the lube and expander ball to smooth up the inside of the neck slightly. This will bring you closer to where you left off with smooth carbon deposits in the neck.
If your not using an expander ball I would suggest a quick brushing with graphite before charging and seating.
Annealing will roughen the inside of the neck especially if you quench in water.
Sizing afterwards allows the lube and expander ball to smooth up the inside of the neck slightly. This will bring you closer to where you left off with smooth carbon deposits in the neck.
If your not using an expander ball I would suggest a quick brushing with graphite before charging and seating.
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I was working on my 6X47L today (just a stretched 6BR) and tallied the hashmarks indicating how many times these cases had been reloaded. This is a run of 10 cases which I set aside for load workup...... I ran them up to 3250fps with Euber 108's and the primers loosened a little, they're "different" than my 150 Match cases so I'm using them alone for diddling with loads. I've fired them from 3100 to 3250 and all points in between with 3 different bullets. I've used them for 108's, 107's and a couple loads with 115's.
These cases have never been loaded under 3100fps. (this would equal about a 2800fps load in the 6BR using Sierra 107's or Berger 105's)
I counted 38 hashmarks....... they've been loaded 38 times in succession.
They've NEVER been trimmed/annealed/bumped. They've been Full Length Resized EVERY time.
They fall into the chamber.
they fall out of the chamber, no click.
Seating pressure is consistent and has been since the second firing.
I measured them for growth. They're .001 longer than my match cases which are on their 4th firing. I attribute the difference to them being fully hammered out. The Match cases are still "seasoning."
They'll pick up that thou in the next four firings.
just a different way to look at it
al
These cases have never been loaded under 3100fps. (this would equal about a 2800fps load in the 6BR using Sierra 107's or Berger 105's)
I counted 38 hashmarks....... they've been loaded 38 times in succession.
They've NEVER been trimmed/annealed/bumped. They've been Full Length Resized EVERY time.
They fall into the chamber.
they fall out of the chamber, no click.
Seating pressure is consistent and has been since the second firing.
I measured them for growth. They're .001 longer than my match cases which are on their 4th firing. I attribute the difference to them being fully hammered out. The Match cases are still "seasoning."
They'll pick up that thou in the next four firings.just a different way to look at it
al
geo.ulrich
Member
trim then anneal then size the reason for annealing is to soften the brass it does not cut as well in the annealled state then resize. george
I trim first, then anneal, then size. I don't do any sizing before annealing...just knock the primer out, clean the primer pocket, brush the neck i.d.'s and trim to length (if needed).
I'll make a suggestion: with the primer out, measure the base-to-datum line on a fired case using a Stoney Point tool, Harrels, etc....whatever way you normally do it and write this figure down. After annealing and before you size the case the first time you may want to back the sizing/shoulder bump die back off a few thou. and creep up to what you want it to be. If you've been chasing the shoulder bump by tweaking the die down a bit as you've fired these cases to keep the shoulder where you want it...it can end up quite a bit further 'down' after you've annealed..since the shoulder will now stay where you put it rather than wanting to stretch back because the brass is hard.
Hope I 'splained this okay.....here's a link to a thread complete with some pics about what I'm trying to describe. -Al
http://benchrest.com/forums/showthread.php?t=54166&highlight=anneal
I'll make a suggestion: with the primer out, measure the base-to-datum line on a fired case using a Stoney Point tool, Harrels, etc....whatever way you normally do it and write this figure down. After annealing and before you size the case the first time you may want to back the sizing/shoulder bump die back off a few thou. and creep up to what you want it to be. If you've been chasing the shoulder bump by tweaking the die down a bit as you've fired these cases to keep the shoulder where you want it...it can end up quite a bit further 'down' after you've annealed..since the shoulder will now stay where you put it rather than wanting to stretch back because the brass is hard.
Hope I 'splained this okay.....here's a link to a thread complete with some pics about what I'm trying to describe. -Al
http://benchrest.com/forums/showthread.php?t=54166&highlight=anneal
John, I got mine from The Woodchucks Den who advertises here on the homepage under 'Accessories'. It's a length of copper tubing that's formed into a loop at the end about 1.5" in inner diameter. The inner edge of the loop has 7-8 holes drilled so the flame encircles the case. It's pretty low tech..but it works well. Not too hard to whip one up if you're at all handy.
Boyd Allen
Active member
Al,
At .2 in front of the head, what is the difference between the chamber and the unfired case? Also, at .3 in front of the head, how much is one of your load workup cases reduced by diameter? How much do you set your FL die to push back the shoulder of a fired case? How much neck tension are you running, at what neck diameter, and loaded round clearance? How much does your FL die reduce the shoulder diameter?
Boyd
At .2 in front of the head, what is the difference between the chamber and the unfired case? Also, at .3 in front of the head, how much is one of your load workup cases reduced by diameter? How much do you set your FL die to push back the shoulder of a fired case? How much neck tension are you running, at what neck diameter, and loaded round clearance? How much does your FL die reduce the shoulder diameter?
Boyd
.005
.001
less than a thou......as small as I can see on the caliper. I also use "feel" because I DO know my other sizing dimensions.
.265 bushing for a loaded round diameter of .267 in a .268nk chamber.
.002
I had Kiff make my chambering reamer .002 fatter than the die reamer. Parallel.
al
Joe Entrekin
New member
FWIW, I am in the middle of re-processing all my 30BR brass (1200 pcs), and my procedure is to 1st polish the fired cases in a tumbler, then anneal them with the Ken Light machine, then trim & re-prep the case mouths,and last go through my regular size/bump/deprime, then clean primer pockets, then clean inside necks. After annealing, you need to clean the insides of the necks really well. Any oxides left from annealing are sticky & abrasive in the dies. I use a bronze bore brush for this chucked in a drill motor. Hope this helps a little.