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Normal Topic Powder/Poly Coated Cast Bullets in the .404 Jeffery (Read 497 times)
Homer
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Powder/Poly Coated Cast Bullets in the .404 Jeffery
Oct 30th, 2017 at 7:39pm
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G'Day Fella's,

Here is a link on this, from the Nosler forum.
https://forum.nosler.com/viewtopic.php?f=4&t=36536

I hope it is of some interest.

Doh!
Homer
  

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takbok
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #1 - Oct 31st, 2017 at 7:08am
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Good effort, Homer. Nice powder coating there. Ive been making some 20:1 Pb:Sn bullets for my 6x45 and powder coating them green. They aren't all that accurate yet so maybe I need to hone out the sizer a bit. I'm shooting them at about 980fps.

Hows the accuracy with those? I'm sure there's no reason they wouldn't work on Aus game if you stoked them up a bit. What loads are you using?

Thanks for sharing the link. I watched that youtube video too and found it pretty good - although it made me jealous that we cant own handguns in the UK.
  
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shooternz
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #2 - Oct 31st, 2017 at 9:49am
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Try running your cast bullets faster, depending on barrel twist and bullet length they may not be going fast enough to stabilise,
I have that problem with my 7-08 and subsonic loads when the velocity gets to 1200fps the accuracy improves quite a lot.
  
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Homer
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #3 - Oct 31st, 2017 at 11:11am
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G'Day Fella's,

As Shooternz suggests Takbok, a higher velocity may improve the accuracy of you loads.

These .404 Jeffery's loads are the standard "Von Gruff" powder charge of; 63 grains of ADI AR-2209 (H4350) and in this instance, RWS cases and Remington 9 1/2 Magnum primers.

Not sure about either accuracy of velocity at present. I hope to confirm both of these detail's, later this week. I'll then post the details and images, on the original Nosler forum link.

Doh!
Homer
  

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takbok
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #4 - Oct 31st, 2017 at 6:03pm
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Cheers for the advice guys. The bullets are pretty long (they're 120gr RCBS .257 bullets that I've sized down to 6mm - they only go through the sizer with powder coating and spray grease).

I have noticed slightly oval holes in targets sith some of them. I was using pistol powder so will have a go with more conventional powder and see how I get on.

The 8 twist barrel handles long 105gr A max bullets well, so should be ok with these bullets - maybe it's just the velocity as you suggest.
  
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shooternz
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #5 - Oct 31st, 2017 at 10:52pm
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Those 120 grainers are way to long even for a 1:8" twist doubt you could get enough velocity with the 6x45 to stabilise them,
plus sizing them down that far would have damaged them,
Pity you live so far away I have a 105 grain mould that works great
in my 6mmBR 1:8" at low velocity
  
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Homer
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #6 - Nov 1st, 2017 at 8:38am
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shooternz wrote on Oct 31st, 2017 at 10:52pm:
Those 120 grainers are way to long even for a 1:8" twist doubt you could get enough velocity with the 6x45 to stabilise them,
plus sizing them down that far would have damaged them


+1
Homer
  

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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #7 - Nov 1st, 2017 at 6:35pm
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Cheers, will have a go at shooting them over 2000 fps before I give up.
  
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Homer
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Re: Powder/Poly Coated Cast Bullets in the .404 Jeffery
Reply #8 - Nov 2nd, 2017 at 8:02pm
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G'Day Fella's,

Further to my original post on this thread, I got to the range today, shot some groups and chronoed some loads.
If your interested in the results, click on the original link for a gander.

Doh!
Homer
  

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