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Rifles, Reloading, Optics, Equipment
Reloading
No load data for Lapua, plenty for Winchester, Remington and federal
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<blockquote data-quote="Mike Matteson" data-source="post: 2501675" data-attributes="member: 101791"><p>My reamer is base off of Sierra Reloading manual. I used the 280AI chambering for the 6mm case. I had speck out. .013" and end up at .0125". Nothing wrong with that. So it's off 1/2 ths. I don't figure that's any deal. So what I have is 6mm/280AI chambering. So when I set this up at the neck area. figures are ..243 OD &.026 for neck thickness for a total of 0.269 OD for the case neck area. i figured that the reamer people would set up the additional clearance to ream the neck. If I do something next time I will speck that out. </p><p>The smith had the barrel made 2" longer to start with and cut off about 2" at the muzzle. So my barrels end up at about 30" long. So I think I have that covered. Twist rate is 7-1. I probable should have turn that up to 6.5 rate. </p><p>The other is I have been reading about some case not fitting in other rifles. I would think that brass manufactures would want to conform to SAAMI standards as far as building the O.D. of the case. I am set up with a Gen-3 for case length trimmer, and a 21st Century cutter for neck neck thickness. I have a Bench-Source Machine for annealing, and figure I can get that to work for me. I am going to set that up with hoses and a Propane tank not little bottles. </p><p>Where some of this came about was. The smith wanted 5 case sized down from 7mm to 6mm. So I cut my case to length first thing. Then cut my neck to thickness. Using Redding bushing dies, it take 4 steps to reduce the necks to .241 ID. That give me .002 for neck tension. I will shoot 100 round in 100 cases to fireform and brake-in of the barrel. will anneal those cases, FL size them. I find out at that time if I need to use a different bushing because of spring-back. I will also set the primer pocket depth if needs and clean the flash-holes before first firing. After that I will anneal again and after each time I use that case or cases. After first firing I will volume weight the cases to see where they are at. I will FL size them each time and bump them back .001 or .002. I have or will have a high end priming tool to seat the primers, and a bullet seat too. Concentric is the name of the game. Hopefully I got it, and my SD?ES are very low. I have learned a lot here, and that's a GREAT THING! I have put to gather a 37 page doc on reloading steps, and cut the long reading out. So I need to check something. I can get too it.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2501675, member: 101791"] My reamer is base off of Sierra Reloading manual. I used the 280AI chambering for the 6mm case. I had speck out. .013" and end up at .0125". Nothing wrong with that. So it's off 1/2 ths. I don't figure that's any deal. So what I have is 6mm/280AI chambering. So when I set this up at the neck area. figures are ..243 OD &.026 for neck thickness for a total of 0.269 OD for the case neck area. i figured that the reamer people would set up the additional clearance to ream the neck. If I do something next time I will speck that out. The smith had the barrel made 2" longer to start with and cut off about 2" at the muzzle. So my barrels end up at about 30" long. So I think I have that covered. Twist rate is 7-1. I probable should have turn that up to 6.5 rate. The other is I have been reading about some case not fitting in other rifles. I would think that brass manufactures would want to conform to SAAMI standards as far as building the O.D. of the case. I am set up with a Gen-3 for case length trimmer, and a 21st Century cutter for neck neck thickness. I have a Bench-Source Machine for annealing, and figure I can get that to work for me. I am going to set that up with hoses and a Propane tank not little bottles. Where some of this came about was. The smith wanted 5 case sized down from 7mm to 6mm. So I cut my case to length first thing. Then cut my neck to thickness. Using Redding bushing dies, it take 4 steps to reduce the necks to .241 ID. That give me .002 for neck tension. I will shoot 100 round in 100 cases to fireform and brake-in of the barrel. will anneal those cases, FL size them. I find out at that time if I need to use a different bushing because of spring-back. I will also set the primer pocket depth if needs and clean the flash-holes before first firing. After that I will anneal again and after each time I use that case or cases. After first firing I will volume weight the cases to see where they are at. I will FL size them each time and bump them back .001 or .002. I have or will have a high end priming tool to seat the primers, and a bullet seat too. Concentric is the name of the game. Hopefully I got it, and my SD?ES are very low. I have learned a lot here, and that's a GREAT THING! I have put to gather a 37 page doc on reloading steps, and cut the long reading out. So I need to check something. I can get too it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
No load data for Lapua, plenty for Winchester, Remington and federal
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