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Enlarging jacketed bullets?
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I was wondering if it is possible to enlarge a jacketed bullet to the next size up by compressing it in a die? I have several thousand .308 FMJ on hand and would love to expand some to .312 to shoot in my '09 Argy.
 
Posts: 3652 | Location: SC,USA | Registered: 07 March 2002Reply With Quote
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Yes ....... the dies are called bump dies. I think they'll work for expanding about .004 up. I'm no expert ...... maybe someone with more experience can chime in ........


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.470 & 9.3X74R Chapuis'
Tikka O/U 9.3X74R
Searcy Classics 450/.400 3" & .577
C&H .375 2 1/2"
Krieghoff .500 NE
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Posts: 1582 | Location: Eleanor, West Virginia (USA) | Registered: 20 April 2002Reply With Quote
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I had a friend who used to bump up 284" bullets to 288" for use in a 280 Ross. He reported good accuracy (he was using iron sights BTW) and no problems.

In theory as lead does not "spring" but is plasticene whereas brass does there should be no problem in going up.

From memory my friend in fact just ran the bullets through a normal "custom" swage die made to produce 288 bullets using "cup and core".
 
Posts: 6813 | Location: United Kingdom | Registered: 18 November 2007Reply With Quote
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Should work as long as none of them are AP.
 
Posts: 1090 | Registered: 25 January 2005Reply With Quote
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Bobster: You might try this website - www.ch4d.com. They deal in bullet swaging dies, & may have bump dies.


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.470 & 9.3X74R Chapuis'
Tikka O/U 9.3X74R
Searcy Classics 450/.400 3" & .577
C&H .375 2 1/2"
Krieghoff .500 NE
Member Dallas Safari Club
 
Posts: 1582 | Location: Eleanor, West Virginia (USA) | Registered: 20 April 2002Reply With Quote
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I remember old ww2 vet club members explaining how they made their own jacketed bullets using their cast bullets and expended brass cases.
 
Posts: 1116 | Registered: 27 April 2006Reply With Quote
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Thanks all! Frank, I'll check CH4D for the bump dies.
 
Posts: 3652 | Location: SC,USA | Registered: 07 March 2002Reply With Quote
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quote:
I was wondering if it is possible to enlarge a jacketed bullet to the next size up by compressing it in a die? I have several thousand .308 FMJ on hand and would love to expand some to .312 to shoot in my '09 Argy.

Hey !!!!..... I'm going to try that!!!!

The other day I was looking at my 180gr RNSP's and wondering if I could bump them up from .311 to .313 and make them semi-spitzer at the same time. I also thought of going from .318 to .313 but thought the copper jacket would have too much 'spring'. But maybe size them down to .311 then up to .313? Mmmmm..... (The idea is to get BT spitzers for my 303 Brit. But bumping up 308 bullets ...... great idea!)


Regards
303Guy
 
Posts: 2518 | Location: New Zealand | Registered: 02 October 2007Reply With Quote
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303Guy you should have no trouble resizeing to 311 from 318 I go from 429/430 to 416 to use 44 mag bullets in my 416 taylor in one pass. I use a Lee sizing die. Works well
 
Posts: 19313 | Location: wis | Registered: 21 April 2001Reply With Quote
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Thanks for that p dog shooter. I don't suppose it would be wise to fire 318 bullet in a 311 barrel! Roll Eyes Apparenly someone actually did pressure tests and found that oversize bullets did not in fact raise the chamber pressure.


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303Guy
 
Posts: 2518 | Location: New Zealand | Registered: 02 October 2007Reply With Quote
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I made a bulk purchase ($32.00 worth) of 8,000 older C.I.L. 170 gr. .30-30 bullets made for the original .30-30 bore diameter (up until about 1904 or so) of .306". I bumped all of them up to .311" for use in my .303 Savage. They came out just fine and shoot tres bien.

(and just so you guys who read modern articles and think all .303 Savages actually had .308 groove diameters don't jump all over me, original .303 Savages called for .311" diameter bullets. C.I.L. made them that diameter until the 1970s, as they suited the older 99s perfectly, and were no problem in the newer ones with the .308" grooves. I still have some boxes of the .311 diameter C.I.L.s too and my 99 was made before the 1908 modernizations.....)
 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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... original .303 Savages called for .311" diameter bullets.
I had been wondering about that. Thanks for clearing that up.


Regards
303Guy
 
Posts: 2518 | Location: New Zealand | Registered: 02 October 2007Reply With Quote
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