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

DarylS
.700 member

Reged: 10/08/05
Posts: 27014
Loc: Beautiful British Columbia, Ca...

Re: 10,75 x 57
24/08/12 08:34 PM

No- just .375. We've built 2 of them. 3,100fps with 235's and 2,900fps with 270's when using RWS brass. I suspect the pressures were running in the 65,000 to 68,000psi range- just a feeling, no definite data, but no problems of any sort and with brass lasting over 30 firings. Even the re-worked .375H&H brass lasted over 20 shots. Make them fit first and they go on and on.

.375H&H brass - turn belts to .522" (from .532") - neck up to .400, size to .375, trim to length and fireform. Easy!

I made my own dies, Keith had RCBS make him a set, called 9.5x68.

It would make a good .416, of course, but the .416Ruger already is there with a couple gr. more capacity and straighter case walls. Either/or - pretty much identical ballistics - 1 factory, 1 wildcat. I prefer wildcats - more fun.

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

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

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Subject	Posted by	Posted on
10,75 x 57	Rolf	22/08/12 08:18 PM
Re: 10,75 x 57	DarylS	23/08/12 12:31 AM
Re: 10,75 x 57	DarylS	23/08/12 12:43 AM
Re: 10,75 x 57	Viking338	23/08/12 03:43 AM
Re: 10,75 x 57	DarylS	23/08/12 04:57 AM
Re: 10,75 x 57	lancaster	23/08/12 05:30 AM
Re: 10,75 x 57	Rolf	23/08/12 08:35 PM
Re: 10,75 x 57	lancaster	24/08/12 01:12 AM
Re: 10,75 x 57	DarylS	24/08/12 01:15 AM
Re: 10,75 x 57	Igorrock	24/08/12 04:21 AM
Re: 10,75 x 57	DarylS	24/08/12 08:34 PM
Re: 10,75 x 57	Rolf	29/12/12 09:11 AM

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