#11
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The 7TCU is what I use to get rid of all of the 'My buddy bought these reloads at the ginshow..' ammo that shows up on my doorstep.
I had some 223 reloads that were hot enough to knock the primers clear out of the case (if they would chamber at all) - every round ejected from an AR had no primer in it. About 300 rounds of 222 mag came frome the same garage sale... Simply take the stem out of the TCU sizer, and shove the shoulder back on the live ammo to headspace. Every one of those cases is now a TCU case. Some of that stuff looked like it had 21 grains of 4227 in it, but it all fired just fine. No pressure - in fact it did not really square out the shoulder corner. B. |
#12
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Quote:
Last edited by Ackman; 03-30-2008 at 01:15 AM. |
#13
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living dangerous
Pushing live ammo into a sizing die is possibly getting a nomination for a DARWIN AWARD .
What is going to happen if for some unknow and unfortunate reason that a cartridge goes off whilst pushing a shoulder back????You now have the cartridge in a pressure vessel ... Nothing good can come of it. Do what you want but I would wear steel underwear.
__________________
"Genius may have it's limitations but stupidity is not thusly handicapped." |
#14
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Quote:
Quote:
Bruce |
#15
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seater
Just a little difference in the amount of force required to seat a bullet as to pushing back a shoulder ,but I see your point.
__________________
"Genius may have it's limitations but stupidity is not thusly handicapped." |
#16
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Quote:
You're also right about resizing. I don't see danger, it won't be setting off a primer. |
#17
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Well If you like I can set them off in the die - I have a .875-14 bushing in a mauser action for fireforming in the sizing die. Used to be SOP in old reloading books.
Sizing a live round with the stem out of the seater is far safer than seating a bullet in a standard seating die. There is nothing in the path of the bullet in an empty sizer die. Some people are afraid of the damnedest things. B. |
#18
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B. Interesting Mauser you have. Ken Howell, in his book, mentions using short sections of barrels screwed into actions for fire forming. I thought about what you're doing but wasn't sure how a harden die would react to the mild(?) pressures of forming. Do you use the FL die or the seater die? Do you get head expansion?
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#19
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That's true, and you see it pretty often. |
#20
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Ray:
Old guys like Sharpe taught me to use a die for things like fireforming. Skip Otto had a bushed mauser I made for him for the same job. He did not like to waste bullets or barrels making brass. If you are using cornstarch or a wax bullet & a light charge for a basic fireform in the shop (to save a trip to the range) it makes life easier. For the faint of heart, Hornady makes a "hydraulic form die" that uses water & a hammer in your press. I use mostly sizing dies for fireforming, and do not have head expansion issues. With no barrel in front of things, you don't build much pressure. Pistol powder & cornstarch works good for most things. B. |
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