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

DarylS
.700 member

Reged: 10/08/05
Posts: 27006
Loc: Beautiful British Columbia, Ca...

Re: An Ode To The 250-300 Savaged Improved...
12/02/22 11:49 AM

Agreed: the usual velocity 'claim' is a 10% increase with the imp. ctg.

The original .250 Savage was SAAMI loaded to 53,000 psi. The .257 Roberts SAAMI stanard was 54,000psi.
In a good bolt actioned rifle, there is no reason this must be adhered to.
This case is the parent of the .22-250, which has a SAAMI loaded pressure limit of 65,000psi.
Thus, in both the .250 IMP and .257 IMP, working pressures are usually higher than the original ctg. was loaded to & in part due to that, the velocities are higher.

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

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

Post Extras

Entire topic
Subject	Posted by	Posted on
An Ode To The 250-300 Savaged Improved...	Ripp	11/02/22 01:36 AM
Re: An Ode To The 250-300 Savaged Improved...	DarylS	11/02/22 04:37 AM
Re: An Ode To The 250-300 Savaged Improved...	85lc	12/02/22 08:30 AM
Re: An Ode To The 250-300 Savaged Improved...	DarylS	12/02/22 11:49 AM
Re: An Ode To The 250-300 Savaged Improved...	NitroX	12/02/22 08:11 PM
Re: An Ode To The 250-300 Savaged Improved...	260rem	12/02/22 10:47 PM
Re: An Ode To The 250-300 Savaged Improved...	93x64mm	13/02/22 08:06 AM
Re: An Ode To The 250-300 Savaged Improved...	DarylS	13/02/22 07:06 AM
Re: An Ode To The 250-300 Savaged Improved...	260rem	13/02/22 11:37 AM
Re: An Ode To The 250-300 Savaged Improved...	DarylS	13/02/22 11:46 AM
Re: An Ode To The 250-300 Savaged Improved...	260rem	13/02/22 05:16 PM

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