375 from 9mm case?

[ohnomrbillk]

I am in need of a 375 bullet in the 220 gr size.

I normally use this: http://www.hornady.com/store/375-Cal-.375-220-gr-FP/

I'm interested in swaging something similar, as these have been nearly unobtainable.

I realize I'd have to size the brass down a little.

Has anyone tried this or something similar?

I'm not interested in reinventing the wheel if it has already been worked out.

Thanks in advance.

[BT Sniper]

No problem! Use cut down scrap 223rem brass instead of 9mm! Easy & awesome bullet. One of those "makes since" jackets for caliber, like 9mms for 40 cal, 40 S&W for 44s, 22lr for 22 cal, 5.7x28 for 30 cal and 223rem for .375! EASY!

http://castboolits.gunloads.com/showthread.php?218123-This-year-s-hunting-bullet-375-from-223-brass!&highlight=

These are 265 grains but getting a 220 grain is just as easy.

http://i636.photobucket.com/albums/uu87/BTSniper/008_zpsc49f2006.jpg (http://s636.photobucket.com/user/BTSniper/media/008_zpsc49f2006.jpg.html)


http://i636.photobucket.com/albums/uu87/BTSniper/007_zps76f5b7bc.jpg (http://s636.photobucket.com/user/BTSniper/media/007_zps76f5b7bc.jpg.html)

http://i636.photobucket.com/albums/uu87/BTSniper/3b236d7d-d336-4e87-8315-2c7a657b3af6_zpsc8ada39d.jpg (http://s636.photobucket.com/user/BTSniper/media/3b236d7d-d336-4e87-8315-2c7a657b3af6_zpsc8ada39d.jpg.html)

http://i636.photobucket.com/albums/uu87/BTSniper/ddd51741-6592-4b12-ba14-be8fcb214538_zpsbe2d5162.jpg (http://s636.photobucket.com/user/BTSniper/media/ddd51741-6592-4b12-ba14-be8fcb214538_zpsbe2d5162.jpg.html)

[MIBULLETS]

If you have a bunch of 9mm brass, I would do it. I have made 200 gr .35 cal bullets from it so you can easily get it to .375. With a flat nose like that Hornady you should be able to get 220 gr or slightly more maybe if you wanted to.

[ohnomrbillk]

A member just PM'd me this:

http://castboolits.gunloads.com/showthread.php?126148-375-from-9mm-38spc-357-and-223

[ohnomrbillk]

Would 9mm and/or 223 brass swaged 375s expand at lower velocities?

[MIBULLETS]

I would say yes but need to know what velocity you are thinking about. The anealed 9mm case will probably expand at a lower velocity than the 223 case just becase the case is more thin than the cut off 223.

[runfiverun]

you control the expansion through a couple of things.
alloy used for the core.
anneal of the case.
and amount of lead exposed at the tip.
a canellure can help stop the expansion, and a partial anneal of just the nose can help here too.
when I was mucking about with 223 bullets and was experimenting a lot with them I found I could get them to act like everything from a varmint grenade through a partition and almost a fmj just by controlling those few things.

[MIBULLETS]

yes, good points runfiverun.