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Shooting & Reloading - Mausers, Big Bores and others >> Mauser Forum Photos & Archive

DarylS
.700 member

Reged: 10/08/05
Posts: 26587
Loc: Beautiful British Columbia, Ca...

Re: 9x57 Mauser
31/12/12 04:42 AM

Yes - People have been fireforming their brass just like that for eons - neck it up, usually seat a bullet over a decent load and fireform - or use a small amount of fast powder as you've suggested.

If the shoulder is .005" or .010" shorter than the chamber, the brass will tend to stretch at the web. .006 or .007, although within SAAMI and CIP standards, is still .006" or .007" of stretch at the web, stretch than doens't have to happen. If it stretches, it will continue to stretch there, grow in length and have to be trimmed fairly often.

Some people have to trim-to-length, sometimes every shot to 3 shots. If the brass does not stretch at the web to start with, it reduces the stretching later and maintains it's correct length much longer. The brass lasts longer and never separates at the web- as long as it's neck sized only, without moving the shoulder back.
I do mine the way I do, to prevent the initial stretching in the first place.

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

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

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Subject	Posted by	Posted on
9x57 Mauser	lancaster	09/12/12 01:46 AM
Re: 9x57 Mauser	dons	09/12/12 03:24 AM
Re: 9x57 Mauser	xausa	09/12/12 04:13 AM
Re: 9x57 Mauser	lancaster	09/12/12 04:30 AM
Re: 9x57 Mauser	deepwoods	25/12/12 02:09 PM
Re: 9x57 Mauser	eagle27	26/12/12 09:18 AM
Re: 9x57 Mauser	pjaln	26/12/12 11:52 AM
Re: 9x57 Mauser	deepwoods	27/12/12 01:13 PM
Re: 9x57 Mauser	mckinney	28/12/12 03:21 AM
Re: 9x57 Mauser	deepwoods	28/12/12 09:46 AM
Re: 9x57 Mauser	mckinney	30/12/12 01:29 PM
Re: 9x57 Mauser	Oldbrit	30/12/12 09:46 PM
Re: 9x57 Mauser	DarylS	31/12/12 04:42 AM
Re: 9x57 Mauser	Oldbrit	31/12/12 07:04 AM
Re: 9x57 Mauser	deepwoods	01/01/13 11:44 AM
Re: 9x57 Mauser	DarylS	01/01/13 12:54 PM
Re: 9x57 Mauser	deepwoods	02/01/13 01:14 AM
Re: 9x57 Mauser	DarylS	02/01/13 05:45 AM
Re: 9x57 Mauser	deepwoods	02/01/13 01:38 PM
Re: 9x57 Mauser	DarylS	28/12/12 11:18 AM
Re: 9x57 Mauser	deepwoods	30/12/12 08:00 AM
Re: 9x57 Mauser	DarylS	30/12/12 08:21 AM

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