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260 pressure help

 
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  #8  
Old 07-05-2012, 03:29 PM
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Re: 260 pressure help

Yes correct on the die. You should be able to continue working up to 45-46 gr h 4831sc for about 2800 fps in a26" barrel. Use the cci primers too.
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  #9  
Old 07-05-2012, 04:45 PM
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Re: 260 pressure help

Quote:
Originally Posted by loaders_loft View Post
Yes correct on the die. You should be able to continue working up to 45-46 gr h 4831sc for about 2800 fps in a26" barrel. Use the cci primers too.
thanks , 24" barrel with 45gr 4831 sc is moving at 2660, great accuracy, will try na grain higher
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  #10  
Old 07-05-2012, 07:44 PM
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Re: 260 pressure help

308 brass necks down in one pass.....check neck thickness if you are chambered tight neck.....243 will also neck up well with an expander bell die.....I've never tried 7mm-08 but am sure they will work perfectly for you.....After necking up or down always check the trim length....

I run 46.0 grains of H4831sc with 130 Bergers in all three of my .260s....2795 in one 1:9 24", 2805 in another 1:9 24" and 2810 in the 26" Shilen 8 twist.....These are not max however but actually the best all/in/one load for all three....

Every barrel/chamber/rifle combination is different so there is a possibility that you may reach 2800 with your 24" tube but I am guessing with your compressed load of 46 grs of H4831sc or more you might not....Actually with the 130 VLDsI could get higher velocities with h4350 but not quite the accuracy....140s will not stabilize in one of my 9 twists so I quit using them....I should have records some where and will let you know if I find them.....

If you can play with your seating depths you might come upon that magic spot that combines good velocity, accuracy and manageable pressure.....Not every rifle can achieve this.....Your Savage will most likely be limited by chamber dimensions and magazine length (unless you use a single shot)....The 140 AMAX however may reach the lands before Bergers so your magazine may work just fine with the AMAX at the lands...

Carry on and always keep safety in mind...Good luck and keep us posted,
randy
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