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Rifles, Reloading, Optics, Equipment
Reloading
Is this even possible? Rem 700 Incredible length of cartridge OAL to lands
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<blockquote data-quote="QuietTexan" data-source="post: 2992506" data-attributes="member: 116181"><p>A Remington 700 BDL is not a benchrest rifle, and a facotry 30-06 is not a benchrest chamber. Alpha alone sells 4 different freebore length options for 6.5CM reamers to allow bullet seating in different ranges, and many shooters (myself included) own our own reamers specified for one particualar bullet/brass combination. Research more into throating, freebore, and chamber design, then you'll see that we're getting the 0.020" seating distance by changing SAAMI specifications in many cases, or using designs from the last ten years and not designs from 100+ years ago. The 6.5CM is a poor comparison to the 30-06 because it was purposfully designed to seat longer heavier bullets more out of the case. The 30-06 was originally specified around a 150gn Spitzer seated deep into the case, heavily focused towards reliable feeding operation from a magazine. The M1 ball round later used an ~180gn bullet.</p><p></p><p>0.020" off is just a common rule of thumb. Not being able to get it doesn't mean much.</p><p></p><p>None of this even gets into what bullet ogive you're using, and how that compares to other bullets you're shooting.</p><p></p><p>FWIW no, I wouldn't shoot those sat out that long. Push it back and find a jump that works. For this kind of case I keep at least half a caliber of bearing surface in the neck, usually more, so that I don't start having bullets move due to recoil.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2992506, member: 116181"] A Remington 700 BDL is not a benchrest rifle, and a facotry 30-06 is not a benchrest chamber. Alpha alone sells 4 different freebore length options for 6.5CM reamers to allow bullet seating in different ranges, and many shooters (myself included) own our own reamers specified for one particualar bullet/brass combination. Research more into throating, freebore, and chamber design, then you'll see that we're getting the 0.020" seating distance by changing SAAMI specifications in many cases, or using designs from the last ten years and not designs from 100+ years ago. The 6.5CM is a poor comparison to the 30-06 because it was purposfully designed to seat longer heavier bullets more out of the case. The 30-06 was originally specified around a 150gn Spitzer seated deep into the case, heavily focused towards reliable feeding operation from a magazine. The M1 ball round later used an ~180gn bullet. 0.020" off is just a common rule of thumb. Not being able to get it doesn't mean much. None of this even gets into what bullet ogive you're using, and how that compares to other bullets you're shooting. FWIW no, I wouldn't shoot those sat out that long. Push it back and find a jump that works. For this kind of case I keep at least half a caliber of bearing surface in the neck, usually more, so that I don't start having bullets move due to recoil. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Is this even possible? Rem 700 Incredible length of cartridge OAL to lands
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