BULLET SWAGER

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Last Post 05 February 2015

CBA Member

joeb33050 posted this 31 January 2015

This is for Ken. Others may use the design for an extremely large fee. It's about intellectual property. Property that spends a lot of time thinking.

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SWAGER AND NOTES.jpg

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CBA Member

Ken Campbell Iowa posted this 31 January 2015

aha ... pictures with directions ... a little more study and i feel i can figure it out ... thanks !!

ken

put D lime N D coconut ...

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Standard Member

M. W. Curtess posted this 01 February 2015

I inherited a few 30 cal "Taper", “Bump", and “Swage” dies a couple of years ago. I think I grasp the principle and how they work mechanically, but I haven't really figured out the purpose of the process. I have an awful lot of moulds, and from among them, there's always one that “fits” each special application quite well (as well as some fine control over bullet size just by varying the alloy and cure process a little). Are we essentially just casting basic cores here, then swaging them into proper bullets? Do we use softer (but heat-treatable) alloys, swage them to the desired configuration & dimensions, then heat-treat them to get the strength needed for the psi / fps we want to shoot them at? I have studied all the material on this in TFS over the years, but still don't quite “get” it. I study the match equipment reports with great interest each issue (altho some of it is pretty repetitious). Over in the “HT & bump” column, the N N 's seem to do as well as the Y Y shooters do, so what am I supposed to think? (Sincere comments only. please.)

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CBA Member

joeb33050 posted this 01 February 2015

M. W. Curtess wrote: I inherited a few 30 cal "Taper” and “Bump” dies a couple of years ago. I think I grasp the principle and how they work mechanically, but I haven't really figured out the purpose of the process. I have an awful lot of moulds, and from among them, there's always one that “fits” each special application quite well (as well as some fine control over bullet size just by varying the alloy and cure process a little). Are we essentially just casting basic cores here, then swaging them into proper bullets? Do we use softer (but heat-treatable) alloys, swage them to the desired configuration & dimensions, then heat-treat them to get the strength needed for the psi / fps we want to shoot them at? I have studied all the material on this in TFS over the years, but still don't quite “get” it. I study the match equipment reports with great interest each issue (altho some of it is pretty repetitious). Over in the “HT & bump” column, the N N 's seem to do as well as the Y Y shooters do, so what am I supposed to think?I have trouble getting 22 bullets to make “good” cartridges. Big noses make the base extend into the powder room. So, make soft bullets to engrave, and the noses bump up in the 450 as GC is pressed on. An engraved nose and not-much-base in the case neck is the/my goal. Shooting jacketed bullets fast also wears the leade, sometimes too quickly, on the route to a good looking/fitting cartridge. (I recently shot 29 jacketed bullets fast in a 223, and the NOE 227-80, which had a nose that wouldn't go in the throat = base below the shoulder now fits with NO engraving. It's just hanging out there.)This cleverly designed sizing die will taper swaging the bullet nose/band/s to allow seating so the nose engraves AND the base is up in the neck.A LITTLE swaging, and making the bullet SMALLER-not bumping it up-that's what this is about. Maybe.I've never had such a plethora of fit problems in 30 caliber, although the throats DO get bigger quickly as the gun is shot.

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Standard Member

Reg Lingle posted this 01 February 2015

An open letter to Joeb- Dear Joeb: I used to make jacked bullets eleventy-eight years ago. The dies are simplistic, but hard to manufacture. The bullets we receive from our present day moulds are a not very good, by that I mean true. By using my old pointing dies I can true a bullet and change its shape to a jacketed bullet design. Also by my using older dies , there is enough wear to be large enough to work well for cast bullets. When spring comes I hope to be well enough that I can get some of my stuff out of storage and make some of these things. I have attached a picture of 2 round nosed bullets reshaped to pointed bullets. The round nosed 224 killed 19 or 20 turkeys, the spitzer version likes 11.8 to 12 grains of 680. I had a stroke and got moved into town and my stuff stored in a garage. Reg

Attached Files

6.5 and 224 swedged bullets.jpg

Standard Member

M. W. Curtess posted this 01 February 2015

Thanks joeb. A light came on when you mentioned throat wear. Hopefully I will remember this if I eventually have any throat wear (that didn't already exist when I got the gun). Only reason I keep any jackets around is because occasionally I'll bring something home that needs 5 - 10 fire-lappers shot thru it.