The Accurate Reloading Forums
Champering Cases
19 January 2011, 05:11
RustyChampering Cases
Should you champer a case every time you reload?
Rusty
We Band of Brothers!
DRSS, NRA & SCI Life Member
"I am rejoiced at my fate. Do not be uneasy about me, for I am with my friends."
----- David Crockett in his last letter (to his children), January 9th, 1836
"I will never forsake Texas and her cause. I am her son." ----- Jose Antonio Navarro, from Mexican Prison in 1841
"for I have sworn upon the altar of god eternal hostility against every form of tyranny over the mind of man." Thomas Jefferson
Declaration of Arbroath April 6, 1320-“. . .It is not for glory, nor riches, nor honours that we are fighting, but for freedom - for that alone, which no honest man gives up but with life itself.”
19 January 2011, 05:17
Von GruffIf the case is propperly chamfered at initiual prep stage there should be no need to chamfer again untill there is a need to trim the length.
Von Gruff.
19 January 2011, 05:24
vapodogquote:
Originally posted by Von Gruff:
If the case is propperly chamfered at initiual prep stage there should be no need to chamfer again untill there is a need to trim the length.
Von Gruff.

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Winston Churchill
19 January 2011, 05:35
ramrod340Oh crap I'm suppose to chamfer my cases???

When I trim I hit them to remove the bur other than that I don't chamfer.
As usual just my $.02
Paul K
19 January 2011, 05:37
craigsterI only chamfer new brass and after trimming.
19 January 2011, 05:39
TEANCUMWhen I inspect the cases and find that the "growth" has been uneven I will hit them again to camfer them, but that is not every time. Always after trimming them.
19 January 2011, 05:44
Dago Red+me on only after trimming, and if new case looks like it needs it.
I love not having to trim cases.

Red
My rule of life prescribed as an absolutely sacred rite smoking cigars and also the drinking of alcohol before, after and if need be during all meals and in the intervals between them.
-Winston Churchill
19 January 2011, 07:02
Red C.As others have stated I chamfer only new brass and after trimming. One exception: some flat based bullets seem to seat better with a fresh chamfer.
Red C.
Everything I say is fully substantiated by my own opinion.
19 January 2011, 10:25
eagle27Agree on only chamfering after trimming or on new cases but I do like and use only the Lyman VLD chamfer tool giving a chatter free shallower chamfer angle than most, supposedly better for BT bullets.
19 January 2011, 10:53
Macifejquote:
Originally posted by vapodog:
quote:
Originally posted by Von Gruff:
If the case is propperly chamfered at initiual prep stage there should be no need to chamfer again untill there is a need to trim the length.
Von Gruff.

If you're using a die with an expander, it should be sized to allow the bullet to seat precisely with or without a crimp.
19 January 2011, 19:30
wasbeemanIf you're using boat tailed bullets, you don't need to chamfer.
Aim for the exit hole
19 January 2011, 22:31
eagle27quote:
Originally posted by wasbeeman:
If you're using boat tailed bullets, you don't need to chamfer.
In theory yes but even Sierra advise chamfering with BT bullets as eventually as the bullet is seated in the case it does reach full diameter and any little nick or rough edge on the mouth will scratch the bullet. How much effect small scratches have on the bullet flight and accuracy? Probably none for hunting accuracy if at all. Just like cleaning primer pockets, annealing case mouths, trimming to length, etc, I just like to cover all bases and produce the best product within my control when reloading.
By using the VLD chamfer tool I can pull bullets, which I do on occasions if deciding to change loads particularly with my 404, and they show absolutely no sign of having ever been loaded, just like new. Maybe not important in the whole scheme of things but then again nice to achieve.

19 January 2011, 23:29
StonecreekOkay, I resisted until it was brought up by someone else: I find the "VLD" (long taper) chamfering tool far superior for the inside neck chamfering than the regular 45-degree tool regardless of the type bullet being used.
Since I don't crimp anything I load, I'm not concerned about how the taper of the mouth might impact crimping.
20 January 2011, 03:43
wasbeemanOnce again we have someone trying too hard. I didn't say the mouths could be rough and ragged. I said you didn't need to chamfer with BT bullets. However, since I try to get it right the first time, I rarely pull bullets.
I think you should be commended though for your presumption to the high road of trying to be all you can be though.
As far as the VLD taper versue the "standard" chamfer tool, I haven't noticed any difference in seating bullets.
Aim for the exit hole
20 January 2011, 05:07
N E 450 No2Every time I trim I chamfer.
I have a board [actually a kitchen cutting board] with my case trimmer and with both inside and outside Forester chamfer tool mounted on it so it is a quick process.
I trim my 450/400 and 450 No2 cases with a RCBS trim die and chamfer them with a C&H hand tool.
DOUBLE RIFLE SHOOTERS SOCIETY
20 January 2011, 05:09
AmmoloaderI do. I have a Giraud power trimmer that trims and chamfers in less than 3 seconds per case so it is no big deal to do it every time.
http://www.giraudtool.com/prod02.htmDoug is a great guy that lives in Richmond,TX and is a Bayou Rifles Club member.
Cliff
NRA Life Member
CMP Distinguished Rifleman
NRA Master, Short and Long Range
20 January 2011, 05:13
FOOBARI trim, chamfer and clean primer pockets with a carbide uniformer every case, every firing. My thing...I like accurate guns AND ammo.
I ran some test with VLD bullets chamfering with a "regular" tool and with a long tapered "VLD chamfering tool" using my most accurate 223 load but couldn't see any difference in group size, but in a benchrest shooter any extra edge might get you the trophy.
One thing was quickly evident...the case AND the chamfering tool need to be mounted in some kind of fixture like a wilson case trimmer otherwise the chamfer will be cut off center and/or uneven.
For the average reloader just lightly chamfer otherwise you will get bullet jackets shavings...or not, it's your toy to play with...everyone has their own level of comfort just like the hamburger commercial, "Have it your own way".

Luck
20 January 2011, 08:49
wasbeemanLet me ask a question: one poster touched on the importance of getting the chamfer straight with the neck of the case. My question is since you are simply creating a little funnel so's the bullet can start into the neck, just how critical is it that it be precicely straight with the neck. Once the bullet has started into the neck, it will self correct so if the chamfer is slightly off, what difference does it make? The bullet sits in the little funnel and the case is held in place under it and the seater ram is pressing stright down so just how crooked can the bullet get.
I've chamfered cases "free hand" for years and never thought that I was creating a potential crooked cartridge.
FWIW, for another test, I loadeed up 50 .223 cartridges using my rock and rusty nail technique and had 7 that had a run out greater than .002 and the greater one was .007.
Aim for the exit hole
20 January 2011, 10:25
vapodogquote:
since you are simply creating a little funnel so's the bullet can start into the neck, just how critical is it that it be precicely straight with the neck.
It's only important to companies that make a living selling "thingys"

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"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery."
Winston Churchill
20 January 2011, 17:47
RustyThanks you all for your input!
Rusty
We Band of Brothers!
DRSS, NRA & SCI Life Member
"I am rejoiced at my fate. Do not be uneasy about me, for I am with my friends."
----- David Crockett in his last letter (to his children), January 9th, 1836
"I will never forsake Texas and her cause. I am her son." ----- Jose Antonio Navarro, from Mexican Prison in 1841
"for I have sworn upon the altar of god eternal hostility against every form of tyranny over the mind of man." Thomas Jefferson
Declaration of Arbroath April 6, 1320-“. . .It is not for glory, nor riches, nor honours that we are fighting, but for freedom - for that alone, which no honest man gives up but with life itself.”
21 January 2011, 07:54
craigsterOCD is somewhat common among more than a few handloaders.