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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

DarylS
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Reged: 10/08/05
Posts: 27593
Loc: Beautiful British Columbia, Ca...

Re: 400 Whelen "Flagged Mauser"
26/03/14 01:27 AM

Yes - as xausa says - form some brass, then check the neck wall thickness. I would formed a case and attmpt to chamber it. If it goes in easily, I'd load a bullet in the case and try to chamber it. Now, if resistance is felt on empty ctg., it will be from the neck area. Smoking or marking the neck with a felt pen should show if the necks are too thick or scraping while chambering.

I would not be too quick to ream or turn the necks - if not necessary. You really only want about .002" to .003" clearance between a loaded ctg. neck and the chamber neck walls. Some rifles, especially today, can have chamber necks up to .008" larger than the loaded ctg. neck.

Another method of checking. If the round chambers, then loading a moderate load and firing it then attempt to shove a new bullet into the fired case mouth will show if the necks were too thick - ie: if a bullet will not enter a fired case, then the necks need reaming or turning. Outside turning is the preferred method as it is more accurate - ie: you turn the necks concentrically around a mandrel - first removing the 'high sides' which is sometimes 'more' than enough.

Inside neck reaming will not make the neck walls concentric, as it merely removes metal from all the way around the inside neck. If the case necks are not of even thickness all the way around and they aren't, this neck thickness error will remain after they are inside reamed. Being .002" to .005" out of round is common.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
400 Whelen "Flagged Mauser"	Rell	24/03/14 11:21 PM
Re: 400 Whelen "Flagged Mauser"	Marrakai	25/03/14 12:08 AM
Re: 400 Whelen "Flagged Mauser"	Ruger_450	25/03/14 02:48 AM
Re: 400 Whelen "Flagged Mauser"	mehulkamdar	25/03/14 01:37 PM
Re: 400 Whelen "Flagged Mauser"	DarylS	25/03/14 03:21 AM
Re: 400 Whelen "Flagged Mauser"	Tiagra	25/03/14 09:14 AM
Re: 400 Whelen "Flagged Mauser"	Rell	25/03/14 12:52 PM
Re: 400 Whelen "Flagged Mauser"	DarylS	31/03/14 04:57 AM
Re: 400 Whelen "Flagged Mauser"	kuduae	31/03/14 05:41 AM
Re: 400 Whelen "Flagged Mauser"	Ruger_450	02/04/14 07:00 AM
Re: 400 Whelen "Flagged Mauser"	DarylS	02/04/14 08:21 AM
Re: 400 Whelen "Flagged Mauser"	Ruger_450	02/04/14 08:59 AM
Re: 400 Whelen "Flagged Mauser"	Rell	07/04/14 01:45 AM
Re: 400 Whelen "Flagged Mauser"	Ruger_450	07/04/14 05:23 AM
Re: 400 Whelen "Flagged Mauser"	mart	31/03/14 08:06 AM
Re: 400 Whelen "Flagged Mauser"	DarylS	01/04/14 02:24 AM
Re: 400 Whelen "Flagged Mauser"	xausa	25/03/14 03:41 PM
Re: 400 Whelen "Flagged Mauser"	Ruger_450	26/03/14 02:54 AM
Re: 400 Whelen "Flagged Mauser"	Rell	30/03/14 09:39 AM
Re: 400 Whelen "Flagged Mauser"	mart	30/03/14 12:57 PM
Re: 400 Whelen "Flagged Mauser"	DarylS	26/03/14 01:27 AM
Re: 400 Whelen "Flagged Mauser"	mehulkamdar	25/03/14 01:32 PM

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