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

400NitroExpress
.400 member

Reged: 26/11/03
Posts: 1154
Loc: Lone Star State

Re: Which 450 caliber is this?
06/12/03 06:33 AM

This formula has been around for quite a while. I think Seyfried probably did develop it, but I don't know for sure.

No, the formula is specifically for 4198, so it would not apply to any other propellant.

The only reference I can remember Seyfried making to the claim that polyester filler has been responsible for ringing chambers was awhile back. As I recall, he said that this was probably due to using far too little of it, if indeed the filler had anything to do with it at all. He stresses that enough should be used to insure some compression when the bullet is seated. Seyfried has indicated that he has never ringed a chamber and he has certainly been using polyester fiber for filler in doubles longer than anyone else I can think of. Personally, I doubt the claim. I've used it in doubles for 15 or so years myself and have never had a problem.
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Subject	Posted by	Posted on
Which 450 caliber is this?	Levallois	30/11/03 06:44 AM
Re: Which 450 caliber is this?	DUGABOY1	02/12/03 02:44 AM
Re: Which 450 caliber is this?	Levallois	02/12/03 07:54 AM
Re: Which 450 caliber is this?	DUGABOY1	02/12/03 10:21 AM
Re: Which 450 caliber is this?	Levallois	02/12/03 10:47 AM
Re: Which 450 caliber is this?	DUGABOY1	03/12/03 09:15 AM
Re: Which 450 caliber is this?	Levallois	04/12/03 07:03 AM
Re: Which 450 caliber is this?	DoubleD	04/12/03 01:15 PM
Re: Which 450 caliber is this?	mickey	04/12/03 01:59 PM
Re: Which 450 caliber is this?	400NitroExpress	04/12/03 05:26 PM
Re: Which 450 caliber is this?	Levallois	05/12/03 01:39 PM
Re: Which 450 caliber is this?	DoubleD	06/12/03 01:47 AM
Re: Which 450 caliber is this?	400NitroExpress	06/12/03 06:33 AM

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