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

DarylS
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Reged: 10/08/05
Posts: 26823
Loc: Beautiful British Columbia, Ca...

Re: 720 Grain .458 Win Mag Loads
02/08/07 12:32 AM

I agree with Steve.
: A realistic possibliity for a load that shoots only 1.32" at 50 yards might be closer to 10" to 12" at 200. As Steve said, 1.32" at 50 yards is not a good group for such a close range.
: Merely doubling and doubling the initial group size just doesn't work in the real world. It is a mathematical equation, not a reliable indicator of a load's possibilties, as longer ranges allow bullet stability and suseptability to the elements to enter the equation.
: As KDM noted, the open grouping may due to open sighs that are close together and having no definite aiming point.
: Proper targets are necessary for shooting groups and perhaps they will rectify that in the near future.
: As an expample, my .458 shoots sub 3/4" at 100 meters with jacketed and 1" and just under 1" with 505gr. cast bullets. It has a 2X Leupold on it. At 200yards, I get 3" to 3.5" groups, much larger than double the 100 yard grouping. Doubling a short range group just doesn't pan out.
: As far as the rifling is concerned, most .458's have 14 to 16" twists and will handle bullets to 700gr.fairly easily. I suspect the grouping is due to the test method as indicated by the shooter.
: 1.32" is only .2" tighter than my 1911 Colt, Wilson barrel provided with 260gr. Speers. Does that mean it will hold 6" at 200 yards?

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

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

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Subject	Posted by	Posted on
720 Grain .458 Win Mag Loads	KDMCustom	29/07/07 03:17 AM
Re: 720 Grain .458 Win Mag Loads	Coloradoyaler	22/01/09 07:02 AM
Re: 720 Grain .458 Win Mag Loads	Tatume	22/01/09 08:11 AM
Re: 720 Grain .458 Win Mag Loads	Coloradoyaler	22/01/09 08:48 AM
Re: 720 Grain .458 Win Mag Loads	Tatume	22/01/09 10:04 AM
Re: 720 Grain .458 Win Mag Loads	Coloradoyaler	22/01/09 11:59 AM
Re: 720 Grain .458 Win Mag Loads	Tatume	22/01/09 11:11 PM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	01/08/07 09:55 AM
Re: 720 Grain .458 Win Mag Loads	szihn	01/08/07 12:04 PM
Re: 720 Grain .458 Win Mag Loads	smicha6551	01/08/07 05:17 PM
Re: 720 Grain .458 Win Mag Loads	Tatume	01/08/07 08:46 PM
Re: 720 Grain .458 Win Mag Loads	Tatume	01/08/07 09:19 PM
Re: 720 Grain .458 Win Mag Loads	DarylS	02/08/07 12:32 AM
Re: 720 Grain .458 Win Mag Loads	Bramble	02/08/07 03:42 AM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	02/08/07 04:22 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	02/08/07 06:56 AM
Re: 720 Grain .458 Win Mag Loads	szihn	02/08/07 07:37 AM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	02/08/07 07:58 AM
Re: 720 Grain .458 Win Mag Loads	Bramble	02/08/07 08:53 AM
Re: 720 Grain .458 Win Mag Loads	9.3x57	02/08/07 11:49 AM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	02/08/07 12:36 PM
Re: 720 Grain .458 Win Mag Loads	9.3x57	02/08/07 11:12 PM
Re: 720 Grain .458 Win Mag Loads	Tatume	02/08/07 11:29 PM
Re: 720 Grain .458 Win Mag Loads	9.3x57	03/08/07 02:07 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	03/08/07 04:24 AM
Re: 720 Grain .458 Win Mag Loads	bigdog	03/08/07 10:51 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	03/08/07 12:01 PM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	24/10/07 05:03 AM
Re: 720 Grain .458 Win Mag Loads	600JDJ	24/10/07 09:07 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	24/10/07 12:19 PM
Re: 720 Grain .458 Win Mag Loads	Mike_Bailey	22/01/09 11:56 PM
Re: 720 Grain .458 Win Mag Loads	Bramble	23/01/09 12:10 PM
Re: 720 Grain .458 Win Mag Loads	bonanza	23/01/09 12:57 PM
Re: 720 Grain .458 Win Mag Loads	Bramble	23/01/09 01:27 PM
Re: 720 Grain .458 Win Mag Loads	Coloradoyaler	23/01/09 01:10 AM
Re: 720 Grain .458 Win Mag Loads	Tatume	23/01/09 04:50 AM
Re: 720 Grain .458 Win Mag Loads	jro45	27/10/07 12:31 AM
Re: 720 Grain .458 Win Mag Loads	Marrakai	27/10/07 10:02 AM
Re: 720 Grain .458 Win Mag Loads	KDMCustom	07/11/07 05:58 AM
Re: 720 Grain .458 Win Mag Loads	bonanza	20/01/09 08:08 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	07/11/07 06:29 AM
Re: 720 Grain .458 Win Mag Loads	DarylS	03/08/07 12:17 AM
Re: 720 Grain .458 Win Mag Loads	458ONLY	23/01/09 02:34 PM

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