Unfinished business.

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macca
.338 Lapua Magnum
Posts: 2465
Joined: Wed Feb 21, 2007 7:46 pm
Favourite Cartridge: 308/6br
Location: Southern Highlands NSW

Re: Unfinished business.

Post by macca »

/,

Tony,
Nice looking groups, looks like you have nailed it.[/quote]
Yeah plus 1.
Tony Z
.270 Winchester
Posts: 1366
Joined: Fri Oct 27, 2006 5:29 pm

Re: Unfinished business.

Post by Tony Z »

Thanks guys. Yes looks pretty dam good and good enough to order a new 30 inch tube while shooting the dunger for the remainder of the year learning about the cartridge.
Next weekend I'm off to a mates property varminting Corvus where i will do an extensive ladder at 600 yards. I will run some aggregates at that range using the same bullets to save my stock of early batch Copperheads and other gems for a newer barrel. Will post results.
Tony Z
.270 Winchester
Posts: 1366
Joined: Fri Oct 27, 2006 5:29 pm

Re: Unfinished business.

Post by Tony Z »

Just remembered to mention about the primers cratering seen yesterday. No pressure issue with cases and no pressure signs seen on the primers today and certainly no blanking since being bushed back to 60 thou last night. It is a magnum bolt face with the extractor swapped out for a 222/223 Sako style. As seen at 6 o,clock because the action is set up as a drop port.
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justjeff
22-250 Remington
Posts: 576
Joined: Tue Jul 08, 2008 7:49 pm
Favourite Cartridge: 270 Win

Re: Unfinished business.

Post by justjeff »

Hi Rinso,

Spoke at length with TZ yesterday, I am going to go to a 9 twist, using the shorter case, at 3000fps gives a SF of 1.3, so that should be heaps, it gives around 240 000rpm. If I can't get the 636 to work, will go back to the Tic Tac. The annealed jacket bullets I am getting are supposed to be able to handle things above and beyond, so with a little luck I should have something that will shoot.

Jeff
Rinso
.338 Lapua Magnum
Posts: 2055
Joined: Thu Jul 27, 2006 11:09 pm
Favourite Cartridge: 25.06
Location: Hervey Bay Qld

Re: Unfinished business.

Post by Rinso »

justjeff wrote:Hi Rinso,

Spoke at length with TZ yesterday, I am going to go to a 9 twist, using the shorter case, at 3000fps gives a SF of 1.3, so that should be heaps, it gives around 240 000rpm. If I can't get the 636 to work, will go back to the Tic Tac. The annealed jacket bullets I am getting are supposed to be able to handle things above and beyond, so with a little luck I should have something that will shoot.

Jeff
Good luck with it Jeff. I hope the 636 works as well as the current results suggest it should.


Dave
RDavies
.257 Roberts
Posts: 785
Joined: Sun May 25, 2008 9:43 pm
Favourite Cartridge: 7 SAUM
Location: Singleton, Hunter Valley, NSW

Re: Unfinished business.

Post by RDavies »

Will it make its appearance at the SCC?
Tony Z
.270 Winchester
Posts: 1366
Joined: Fri Oct 27, 2006 5:29 pm

Re: Unfinished business.

Post by Tony Z »

Not this year Rod. If there is a 600 IBS match there next year i will be there with it.
jacko-2
New Member
Posts: 67
Joined: Sat Jul 12, 2014 11:38 am
Favourite Cartridge: 7mm

Re: Unfinished business.

Post by jacko-2 »

yer tony,,realoader 15 iz the ducks nuts,,ive got a 9 wist 6mm dasher barrel ,, not worth shit at 1000yd ,,
good to see u thinking about comp shooting again,,
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