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DonZ
.300 member


Reged: 24/12/12
Posts: 120
Loc: BW
Re: 6.5x54 MS vs 256 Gibbs Magnum
      02/04/24 04:25 PM

I guess it depends on how you define "ballistically superior".

It's similar to the 6.5X55 Swede.

My notes say that a 145 grain bullet is launched at 2,600 fps and 2,178 ft-lbs of energy. That's about 2,950 Joules.

My notes for a 140 grain bullet from a 6.5X54 shows about 2,500 fps and 1,950 ft-lbs of energy, or 2,640 Joules. So the Gibbs would be faster, and has a little more energy.

More accurate? I don't know. Downrange performance (drop, drift) would be heavily dependent on bullet specs (Ballistic Coefficient, Sectional Density). About all I can guess is using the same bullet in each, the Gibbs would be a touch faster. But I don't think a deer would notice the difference.

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Subject Posted by Posted on
* 6.5x54 MS vs 256 Gibbs Magnum Vette447 12/03/24 03:36 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Marrakai   12/03/24 06:58 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum kuduae   12/03/24 10:58 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum bouldersmith   13/03/24 04:55 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 93x64mm   13/03/24 07:03 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DarylS   13/03/24 10:28 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   01/04/24 02:23 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Rothhammer1   05/04/24 07:41 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   06/04/24 06:56 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Rothhammer1   06/04/24 04:40 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DarylS   07/04/24 03:10 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   13/04/24 11:52 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Parabola   26/04/24 12:44 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   29/04/24 10:44 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DarylS   14/04/24 03:42 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 93x64mm   14/04/24 07:26 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DarylS   14/04/24 08:19 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   14/04/24 11:04 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 85lc   15/04/24 02:33 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DarylS   15/04/24 02:59 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 85lc   01/04/24 10:30 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Vette447   02/04/24 12:21 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum DonZ   02/04/24 04:25 PM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum 2152hq   03/04/24 05:26 AM
. * * Re: 6.5x54 MS vs 256 Gibbs Magnum Rothhammer1   05/04/24 07:31 PM

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