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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
R700 SA build... 7SAUM?
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<blockquote data-quote="toddc" data-source="post: 1261449" data-attributes="member: 4566"><p>Just shot my new Savage 7 SAUM build over chrono.</p><p>Headspaced very short, built on a LA platform seated to 3.10 COAL with a 27" Mcgowen tube.</p><p>Firing virgin Norma brass with the 175 ELD-X and .5 under max of H-1000 it made 3042. Ramped up over 5 gr from 2890.</p><p> VERY VERY HAPPY. Was ready to be happy at 2900. No pressure signs at all under a 50x microscope. IDK what to do now. I'm .5 under max but compressing H-1000. Afraid I am close to done just because of space. Brass grew 2 thousandth from virgin so headspace is very tight.</p><p> Probably will leave headspace where it is and see if I can find accuracy around 3100. </p><p>Very impressed with this critter on a LA platform. </p><p></p><p>Also tried Superperformance powder and saw some promise but with the H-1000 results will probably not waste barrel life pursuing. 7828 ran about with book but was miles away from H-1000. There is no book on the Superperformance.</p><p></p><p>I have always ran extremely overbore stuff just cuz. Now I am going, Hmmmmm 50% less powder and within a very short distance of RUM speeds with a small headspace. I could probably bump headspace up 3 or 4 thousand and get REALLY close to RUM with a barrel that will last a lot longer, kick a lot less and just be more efficient. </p><p></p><p>This build was a spur of the moment kinda deal. I found the barrel in classifieds here and couldn't pass it up. If I had it to do again I would build the SS like Mudrunner said on a SA and hopefully achieve the same thing.</p></blockquote><p></p>
[QUOTE="toddc, post: 1261449, member: 4566"] Just shot my new Savage 7 SAUM build over chrono. Headspaced very short, built on a LA platform seated to 3.10 COAL with a 27" Mcgowen tube. Firing virgin Norma brass with the 175 ELD-X and .5 under max of H-1000 it made 3042. Ramped up over 5 gr from 2890. VERY VERY HAPPY. Was ready to be happy at 2900. No pressure signs at all under a 50x microscope. IDK what to do now. I'm .5 under max but compressing H-1000. Afraid I am close to done just because of space. Brass grew 2 thousandth from virgin so headspace is very tight. Probably will leave headspace where it is and see if I can find accuracy around 3100. Very impressed with this critter on a LA platform. Also tried Superperformance powder and saw some promise but with the H-1000 results will probably not waste barrel life pursuing. 7828 ran about with book but was miles away from H-1000. There is no book on the Superperformance. I have always ran extremely overbore stuff just cuz. Now I am going, Hmmmmm 50% less powder and within a very short distance of RUM speeds with a small headspace. I could probably bump headspace up 3 or 4 thousand and get REALLY close to RUM with a barrel that will last a lot longer, kick a lot less and just be more efficient. This build was a spur of the moment kinda deal. I found the barrel in classifieds here and couldn't pass it up. If I had it to do again I would build the SS like Mudrunner said on a SA and hopefully achieve the same thing. [/QUOTE]
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R700 SA build... 7SAUM?
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