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The Basics, Starting Out
Sorting and load development question
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<blockquote data-quote="johnnyk" data-source="post: 2236154" data-attributes="member: 307"><p>I'm kinda doing the same thing with my 7RM. I have a case (500rds) of R P brass that I bought years ago at a gun show. I used them on a 7Mag Sendero and went through each case 2 or 3 times. I took pretty good care of it, annealing it once and I remember doing a outside neck turn on them once. Not a full blown, deep cutting like the bench rest guys do for tight neck chambers but just enough to take out the higher spots. Skim job if you will. I figured that would make them a bit more even and concentric.</p><p>According to my journal that Sendero was replaced in Oct 2006 with a 700P in 7RM. One of my sons has had the rifle for a while but now it's back in its original stable and I recently started loading for it again. This "Sendero brass" only needed neck sizing and it fits the 700P great. I figured the chamber dimensions would be close but that was too easy.</p><p>My plan of attack was to neck size and see if it fit, if so I would be done for the first go round. If neck sizing didn't do it then I was going to bump the shoulder .002", .003", .004", on and on until it fit or til I was full length resizing. Either way I was determined to "own" that brass.</p><p></p><p>I'm really liking the ole girl now. I had put a Shilen trigger on it years ago, recently installed a muzzle break and Vortex Strike Eagle 5-25X56. Took her to 1000yds last Sunday with 162gn ELD-M's leaving the factory tube 3089fps. I just thought of something, that was the first time she and I rang steel at 1k. All these years.</p></blockquote><p></p>
[QUOTE="johnnyk, post: 2236154, member: 307"] I'm kinda doing the same thing with my 7RM. I have a case (500rds) of R P brass that I bought years ago at a gun show. I used them on a 7Mag Sendero and went through each case 2 or 3 times. I took pretty good care of it, annealing it once and I remember doing a outside neck turn on them once. Not a full blown, deep cutting like the bench rest guys do for tight neck chambers but just enough to take out the higher spots. Skim job if you will. I figured that would make them a bit more even and concentric. According to my journal that Sendero was replaced in Oct 2006 with a 700P in 7RM. One of my sons has had the rifle for a while but now it's back in its original stable and I recently started loading for it again. This "Sendero brass" only needed neck sizing and it fits the 700P great. I figured the chamber dimensions would be close but that was too easy. My plan of attack was to neck size and see if it fit, if so I would be done for the first go round. If neck sizing didn't do it then I was going to bump the shoulder .002", .003", .004", on and on until it fit or til I was full length resizing. Either way I was determined to "own" that brass. I'm really liking the ole girl now. I had put a Shilen trigger on it years ago, recently installed a muzzle break and Vortex Strike Eagle 5-25X56. Took her to 1000yds last Sunday with 162gn ELD-M's leaving the factory tube 3089fps. I just thought of something, that was the first time she and I rang steel at 1k. All these years. [/QUOTE]
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