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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 SHERMAN SHORTS WITH 156 BERGER
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<blockquote data-quote="reubenski" data-source="post: 2435514" data-attributes="member: 36515"><p>True Rem SA is what? 2.880"? But most custom actions will allow a 2.950 or 3" OAL through their bottom loading port. AICS mags will allow 2.950-2.970'ish coal but the better question is how much do you want to jump the bullet. If just 20 or 30 thou you will need a shorter throat. If .100" plus you'll want the longer throat. The SST has two reamers with different throat lengths. </p><p></p><p>The 156's will have a long COAL. In fact, these days I always choose short throated reamers when I have barrels chambered and then use a uni-throater to lengthen the throat to where I need it using a dummy round once I get my hands on the barrel. </p><p></p><p>Using the SST II reamer a 156 was 3.005" to the lands on a new barrel for me. A .120" jump would seat a 156 pretty deep in the case at 2.880" but it would fit in just about every mag. I've settled on 147 ELDMs at 2.910" because they shoot so well and allow for a lot of room in the case. That's jumping about 80 to 90 thou. I've killed antelope the last three years with a single shot past 600yds. I chose a 1:8" to be easier on bullets and at 6,000ft ASL it's plenty stable with long bullets. I don't plan on shooting monos.</p></blockquote><p></p>
[QUOTE="reubenski, post: 2435514, member: 36515"] True Rem SA is what? 2.880"? But most custom actions will allow a 2.950 or 3" OAL through their bottom loading port. AICS mags will allow 2.950-2.970'ish coal but the better question is how much do you want to jump the bullet. If just 20 or 30 thou you will need a shorter throat. If .100" plus you'll want the longer throat. The SST has two reamers with different throat lengths. The 156's will have a long COAL. In fact, these days I always choose short throated reamers when I have barrels chambered and then use a uni-throater to lengthen the throat to where I need it using a dummy round once I get my hands on the barrel. Using the SST II reamer a 156 was 3.005" to the lands on a new barrel for me. A .120" jump would seat a 156 pretty deep in the case at 2.880" but it would fit in just about every mag. I've settled on 147 ELDMs at 2.910" because they shoot so well and allow for a lot of room in the case. That's jumping about 80 to 90 thou. I've killed antelope the last three years with a single shot past 600yds. I chose a 1:8" to be easier on bullets and at 6,000ft ASL it's plenty stable with long bullets. I don't plan on shooting monos. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6.5 SHERMAN SHORTS WITH 156 BERGER
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