dian,
Should be possible, with some effort I've taken Turk military 8mm FMJ (0.323) to 0.312 for use in a Nagant. I use the Lee sizing die first in 0.316 and then 0.311.
Cheers...
Con

Rick Swaging a bullet up OR down May... brake the bond
Doing it ( resizing) more then 0.0500 will start braking the bond...
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Rick.! you already know this
Or are you just highlighting the fact that it will ?
Sorry did not mean to step on your toe's here
Guess i need to look before i leap

Pottsy:

What if you draw a bonded core bullet down more than 5 thousandths? Would the bonding prevent core separation?

Rick

Try it anyway .........Just becarfull your no first timer at this..You know up from down... if your using your OWN core bonded bullet who's to say maybe you will have better luck then me maybe it's just the flux i use maybe it's alot of diffrent thing's i do diffrent who's to say till YOU try it.

Pottsy:

To go with the set of .312 dies I've ordered from Richard, I've picked up two ring dies from C-H. One is a .311, and the other is a .308.

I figured the .312's would be good for my Winchester 1895, my SMLE's and my P14's. I figured the .311's would go in my SKS and Globco 555 (a rechambered and modified SVT 40), and I could draw a few down to .308 to try them out in my .308's and 30-06's.

I thought that the .004 being close to the .005 limit for drawing bullets down, I might be risking the loosening of my cores, and that I could mitigate this by bonding the cores first. It seems I may be mistaken.

Rick

Con:

Don't you get loose jackets doing that?

I understand that if you draw down more than 5 or 6 thousandths, spring back of the jackets causes the cores to loosen.

Rick