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Double Rifles, Single Shots & Combinations >> 'Classic' Firearms Photos & Archive

Marrakai
.416 member

Reged: 09/01/03
Posts: 3482
Loc: Darwin, Top End of Australia

Re: Model of 1910 .280 Sporting Rifle
17/03/18 02:07 PM

G'day leeenfield:
apologies for not responding earlier, been away from my computer travelling.
Firstly, the neck thickening is not really excessive when sizing .308 down to .287, whereas sizing .375 down to .287 certainly is! As mentioned, there is a slight 'step' inside the neck where the shoulder started on the .300 donor case, but its only a thou or two and doesn't seem to be an issue.
One could always inside neck-ream anyway if the need arose, assuming one was suitably equipped to do so. I am up to 3rd firing on my Norma cases and no issues so far. The rifle will be warmed up again tomorrow in a Classic Light Nitro event, providing Cyclone Marcus drags the wet weather away to the south-west.
Regarding the effort required to size down the .300 Win Mag cases, I am pretty conservative and at no point did I consider the 7/8 die to be at risk of cracking. Two things I consider crucial to the process are: use of anhydrous lanolin as the case lube (commercial lubes don't cut the mustard); and pushing the case into the die a mm or 2 at a time, with ~180 degree turning of the case between compressions.
I did try neck-and-shoulder annealing the .300 cases first but found no discernible difference when using new Norma cases.
With the CH4D die, removal of the depriming rod allowed the neck to lengthen with no issues, trimming to length afterwards. Didn't worry about the loose necks for the fire-forming loads. With other dies, you may need to trim the .300 slightly beforehand.
Hope this info is helpful.

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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Subject	Posted by	Posted on
Model of 1910 .280 Sporting Rifle	lancaster	01/05/14 08:16 PM
Re: Model of 1910 .280 Sporting Rifle	DarylS	02/05/14 12:33 AM
Re: Model of 1910 .280 Sporting Rifle	lancaster	04/11/14 02:03 PM
Re: Model of 1910 .280 Sporting Rifle	Don	05/11/14 06:53 AM
Re: Model of 1910 .280 Sporting Rifle	Carpetsahib	07/04/15 12:26 AM
Re: Model of 1910 .280 Sporting Rifle	lancaster	07/04/15 04:48 AM
Re: Model of 1910 .280 Sporting Rifle	Ash	09/04/15 12:15 AM
Re: Model of 1910 .280 Sporting Rifle	buckbrush	22/07/15 10:44 AM
Re: Model of 1910 .280 Sporting Rifle	Caprivi	22/07/15 12:54 PM
Re: Model of 1910 .280 Sporting Rifle	DarylS	23/07/15 01:21 AM
Re: Model of 1910 .280 Sporting Rifle	eagle27	26/11/16 02:30 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	02/12/16 10:24 PM
Re: Model of 1910 .280 Sporting Rifle	henry_r	10/12/16 01:41 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	24/07/15 12:36 PM
Re: Model of 1910 .280 Sporting Rifle	kuduae	24/07/15 06:27 PM
Re: Model of 1910 .280 Sporting Rifle	lancaster	24/07/15 08:03 PM
Re: Model of 1910 .280 Sporting Rifle	Well_Well_Well	24/07/15 08:27 PM
Re: Model of 1910 .280 Sporting Rifle	DarylS	25/07/15 01:52 AM
Re: Model of 1910 .280 Sporting Rifle	4seventy	18/03/17 03:59 PM
Re: Model of 1910 .280 Sporting Rifle	2152hq	25/07/15 03:39 PM
Re: Model of 1910 .280 Sporting Rifle	lancaster	26/11/16 03:59 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	26/11/16 10:51 AM
Re: Model of 1910 .280 Sporting Rifle	Rule303	10/12/16 05:43 PM
Re: Model of 1910 .280 Sporting Rifle	lancaster	10/12/16 08:41 PM
Re: Model of 1910 .280 Sporting Rifle	500Boswell	19/03/17 10:37 AM
Re: Model of 1910 .280 Sporting Rifle	Rothhammer1	11/10/17 09:08 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	14/10/17 09:24 PM
Re: Model of 1910 .280 Sporting Rifle	lancaster	15/10/17 02:04 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	06/01/18 12:24 AM
Re: Model of 1910 .280 Sporting Rifle	leeenfield	09/03/18 08:33 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	17/03/18 02:07 PM
Re: Model of 1910 .280 Sporting Rifle	leeenfield	18/03/18 08:56 AM
Re: Model of 1910 .280 Sporting Rifle	vykkagur	28/11/19 01:34 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	18/02/21 11:37 AM
Re: Model of 1910 .280 Sporting Rifle	Spud303	18/02/21 04:04 PM
Re: Model of 1910 .280 Sporting Rifle	85lc	19/02/21 03:17 AM
Re: Model of 1910 .280 Sporting Rifle	DarylS	19/02/21 04:11 AM
Re: Model of 1910 .280 Sporting Rifle	vykkagur	19/02/21 12:09 PM
Re: Model of 1910 .280 Sporting Rifle	Huvius	19/02/21 05:26 AM
Re: Model of 1910 .280 Sporting Rifle	85lc	20/02/21 06:23 AM
Re: Model of 1910 .280 Sporting Rifle	Huvius	20/02/21 08:03 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	16/07/21 03:57 PM
Re: Model of 1910 .280 Sporting Rifle	DarylS	17/07/21 12:29 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	17/07/21 09:31 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	26/07/21 12:03 PM
Re: Model of 1910 .280 Sporting Rifle	vykkagur	31/07/21 07:42 AM
Re: Model of 1910 .280 Sporting Rifle	NitroX	31/07/21 05:22 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	10/08/21 05:35 PM
Re: Model of 1910 .280 Sporting Rifle	93x64mm	10/08/21 09:04 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	30/07/21 11:01 AM
Re: Model of 1910 .280 Sporting Rifle	Waidmannsheil	16/07/21 04:12 PM
Re: Model of 1910 .280 Sporting Rifle	93x64mm	08/01/18 07:12 AM
Re: Model of 1910 .280 Sporting Rifle	cordite	06/01/18 03:02 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	07/01/18 06:21 PM
Re: Model of 1910 .280 Sporting Rifle	Rothhammer1	09/01/18 06:58 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	09/01/18 11:31 PM
Re: Model of 1910 .280 Sporting Rifle	Rothhammer1	10/01/18 07:57 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	19/01/18 05:39 PM
Re: Model of 1910 .280 Sporting Rifle	Rothhammer1	19/01/18 07:01 PM
Re: Model of 1910 .280 Sporting Rifle	Rothhammer1	10/01/18 07:41 PM
Re: Model of 1910 .280 Sporting Rifle	Well_Well_Well	08/01/18 08:30 AM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	08/01/18 04:42 PM
Re: Model of 1910 .280 Sporting Rifle	93x64mm	08/01/18 07:25 PM
Re: Model of 1910 .280 Sporting Rifle	4seventy	19/03/17 11:21 AM
Re: Model of 1910 .280 Sporting Rifle	CarlsenHighway	10/03/17 06:43 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	11/03/17 12:12 AM
Re: Model of 1910 .280 Sporting Rifle	CarlsenHighway	12/03/17 02:22 PM
Re: Model of 1910 .280 Sporting Rifle	lancaster	14/03/17 12:47 AM
Re: Model of 1910 .280 Sporting Rifle	FrankFarmer	18/03/17 02:52 PM
Re: Model of 1910 .280 Sporting Rifle	CarlsenHighway	20/03/17 01:41 AM
Re: Model of 1910 .280 Sporting Rifle	500Boswell	20/03/17 08:14 AM
Re: Model of 1910 .280 Sporting Rifle	JabaliHunter	21/03/17 07:52 PM
Re: Model of 1910 .280 Sporting Rifle	CarlsenHighway	22/03/17 08:48 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	23/03/17 12:07 AM
Re: Model of 1910 .280 Sporting Rifle	NitroX	23/03/17 10:07 PM
Re: Model of 1910 .280 Sporting Rifle	Marrakai	28/09/17 09:56 AM
Re: Model of 1910 .280 Sporting Rifle	lancaster	29/09/17 04:55 AM
Re: Model of 1910 .280 Sporting Rifle	Ash	01/10/17 05:31 PM
Re: Model of 1910 .280 Sporting Rifle	Waidmannsheil	01/10/17 08:19 PM
Re: Model of 1910 .280 Sporting Rifle	Ash	10/10/17 12:04 AM
Re: Model of 1910 .280 Sporting Rifle	Waidmannsheil	10/10/17 04:43 AM
Re: Model of 1910 .280 Sporting Rifle	Ash	11/10/17 01:48 PM
Re: Model of 1910 .280 Sporting Rifle	Old_Glass	23/02/15 04:45 PM
Re: Model of 1910 .280 Sporting Rifle	Ash	25/02/15 10:38 PM

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