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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="Shoalwater" data-source="post: 916938" data-attributes="member: 65420"><p>I have an idea rolling around in my head for and ELR cartridge. I want to take a 300RUM and push the shoulder, neck, OAL, etc., back by .200". This would give you a case OAL of 2.650, a mini 300rum if you will. All the same specs except shortened by .200". I would also probably straighten the taper out to about 10 to 15 thousandths as well. It would yield a case with about 105gr capacity give or take and you would be able to seat the 230gr Bergers way out and still fit in a AICS or Accurate Mag. If my numbers are correct, it should be able to push those 230's up around 3000FPS out of a 28" bbl, making it better (drop wise) than a 338 Lapua moving a 300gr Berger Hybrid at 2850FPS, to a mile, and almost as good in the wind. </p><p></p><p>How would I go about moving the shoulder back that far? Is it even possible? My initial thought is to cut down a 300RUM FL Sizing die by .200" and just try it, but I think trying to move the shoulder that far will most likely result in a donut. Any help would be greatly appreciated. </p><p></p><p>Here are a couple of pics to help show what I am trying to do. The first is a 300RUM and the second is my shrunk down design.</p><p></p><p><a href="http://s1289.photobucket.com/user/Shoalwater10/media/Mobile%20Uploads/81B6B804-9734-470D-897F-CE8F04D22A66_zpsj3initbh.jpg.html" target="_blank"><img src="http://i1289.photobucket.com/albums/b504/Shoalwater10/Mobile%20Uploads/81B6B804-9734-470D-897F-CE8F04D22A66_zpsj3initbh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://s1289.photobucket.com/user/Shoalwater10/media/Mobile%20Uploads/8387E74D-4CCD-4FEB-9D47-5CEA18EB2D1A_zpsdhga0iiq.jpg.html" target="_blank"><img src="http://i1289.photobucket.com/albums/b504/Shoalwater10/Mobile%20Uploads/8387E74D-4CCD-4FEB-9D47-5CEA18EB2D1A_zpsdhga0iiq.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="Shoalwater, post: 916938, member: 65420"] I have an idea rolling around in my head for and ELR cartridge. I want to take a 300RUM and push the shoulder, neck, OAL, etc., back by .200". This would give you a case OAL of 2.650, a mini 300rum if you will. All the same specs except shortened by .200". I would also probably straighten the taper out to about 10 to 15 thousandths as well. It would yield a case with about 105gr capacity give or take and you would be able to seat the 230gr Bergers way out and still fit in a AICS or Accurate Mag. If my numbers are correct, it should be able to push those 230's up around 3000FPS out of a 28" bbl, making it better (drop wise) than a 338 Lapua moving a 300gr Berger Hybrid at 2850FPS, to a mile, and almost as good in the wind. How would I go about moving the shoulder back that far? Is it even possible? My initial thought is to cut down a 300RUM FL Sizing die by .200" and just try it, but I think trying to move the shoulder that far will most likely result in a donut. Any help would be greatly appreciated. Here are a couple of pics to help show what I am trying to do. The first is a 300RUM and the second is my shrunk down design. [URL=http://s1289.photobucket.com/user/Shoalwater10/media/Mobile%20Uploads/81B6B804-9734-470D-897F-CE8F04D22A66_zpsj3initbh.jpg.html][IMG]http://i1289.photobucket.com/albums/b504/Shoalwater10/Mobile%20Uploads/81B6B804-9734-470D-897F-CE8F04D22A66_zpsj3initbh.jpg[/IMG][/URL] [URL=http://s1289.photobucket.com/user/Shoalwater10/media/Mobile%20Uploads/8387E74D-4CCD-4FEB-9D47-5CEA18EB2D1A_zpsdhga0iiq.jpg.html][IMG]http://i1289.photobucket.com/albums/b504/Shoalwater10/Mobile%20Uploads/8387E74D-4CCD-4FEB-9D47-5CEA18EB2D1A_zpsdhga0iiq.jpg[/IMG][/URL] [/QUOTE]
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