just bought 150+ high quality brass from “another” web site. the problem is that I noticed a buldge above the web. this area measures .473 on all three brands of brass. I have been shooting new hornady match ammo and lake city match out of a m-70 bull bbl, m-1 garand with a new criterion bbl. 1903 spgfld. with a new original bbl. all the brass that comes out of these chambers measures .4685 to .4695. the brass was advertised as once fired. that's why I bought it. funny thing is the primers are all the same mfgr. in appearance. I sectioned one brass to look for a crack that will lead to head separation, but found nothing.. the question that I have is, would new ammo expand this much???????????. I wrote the person a letter similar to this thread asking what this ammo was shot out of and if they might have beed reloads. no mention of returning my money. buyer beware. this is my first post. sorry that this is what it is about.
30-06 case measurements???
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If I understand you correctly, you just have brass that was fired in a chamber that was on the large size for diameter at this point.
Brass fired in my Ruger #1 measures .472 at this point. Brass out of your own rifles was only .003-.004” smaller. I see no reason to suspect that this indicates a coming head separation.
John
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Is this brass of commercial manufacture or military?
US product or off-shore?
Is it nickeled? and if so are there any traces of red or purple dye, perhaps in the headstamp lettering?
When you resize and prime these cases are the primer pockets still snug, or do primers enter easily?
If nickled and showing dye traces cases may have been from proof ammunition.
If military, check for delinking scratches on the case body. They might have been fired in a machinegun with loose chamber.
If US Federal or off-shore manufacturer and primers seat more easily than normal, brass may be soft. OK for cast bullet loads, but be cautious above starting loads.
73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia
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You have good brass even if you run into all the things mentioned. Just be very sure you set your Full Length sizing die to have full definite checked contact with your shell holder on every stroke sizing. If your press cams over, set the die down farther so your press can't cam over and definitely causes contact of the die to the shell holder with a case being sized and in the die.. This will give you the maximum sizing available with your full length sizing die. You should then trim chamfer/de-burr as usual before proceeding.
You can then load as normal or fire-form and neck size if you wish.
Gary
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I take the claim of “once fired” with a grain of salt unless I know the source. You never see an ad for ” worn out” brass.
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this brass is rws, sako and a few norma
Their brass is uniformly good. I would FL size, trim and go for it.
73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia
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I'm shooting 30-06 with a Remington 700 and a sporterized Springfield. The Springfield brass runs about 3 thousands bigger than the Remington from the neck all the way down the case after firing. Resize the brass and don't worry, the chamber in which the brass was fired was a little large.
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i am a bit late for the party but .... i thought 0.473 was well within spec for fired 30-06 brass ...
i would go out of my way to NOT size that back down in that area as long as it chambered easily ...
ken
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FWIW, when I was shooting High Power competition, many of us re-sized full-length with a sizing die available from several manufacturers; it was tagged as “small-base” strictly so the re-sized cases would function well in rapid fire, by smoothing out the “bulge” sometimes created by a loose chamber. In use, it was nearly impossible to tell when using the die, (no excess effort needed on the press) but it worked well. Downside? Well, the cases were good for about 5 or so reliable reloads, before we began to get case separations just above the head. Never saw any damage from it, but you had to clear the broken case with an extractor, then fire an “alibi” round--not a fun thing. Nearly always cost you points.
In theory, there's no difference between theory and practice. In practice, there is. My fate is not entirely in Gods hands, if I have a weapon in mine.
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Dave
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