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Rifles, Reloading, Optics, Equipment
Reloading
Primer pocket test forthcoming.
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<blockquote data-quote="C-130 Dude" data-source="post: 2767294" data-attributes="member: 122991"><p>My test limits the powder max before I start. I decided to not load to published max at the beginning to avoid issues. I'm stopping .6 from published max. Which is 45.6. I'm only loading to 45.0. I'm not so much looking at grouping. I want to know what the net effect of different primer pocket depth is. All of my primers are touching the bottom. Others have done similar tests, but all with the same cases having the same pocket depth. Different makers of cases manufacturer them to different depth. Ive got cases with pocket depths ranging from: .125 from federal, 127 from LC, .129 from hornady, and .130 from lapua. (I did sort all cases to the same depth prior to test.) I'm only dealing with ones from the same lot and make (LC) and only two selected depths: .127 and .130 which represents the bulk of my case stash. As opposed to primer seated depth with relation to crush. Not testing the actual crush. They all touch the bottom. The cases I'm using came from a govt contract cancelation. They were pull downs and new, unfired. I cleaned them. which was a pita considering the primer and neck sealer used. (I use xylene here. Works better than acetone.) Then did a full length size w/neck bushing. Trimmed all cases and did the chamfer/debur. Didn't need to do annealing because they had never been fired. After all done, I inspected all one by one using my Stareett caliper, Forster case gage, and checked bump. Which was 2-3 thou. After this, I'm just curious what will happen.</p></blockquote><p></p>
[QUOTE="C-130 Dude, post: 2767294, member: 122991"] My test limits the powder max before I start. I decided to not load to published max at the beginning to avoid issues. I'm stopping .6 from published max. Which is 45.6. I'm only loading to 45.0. I'm not so much looking at grouping. I want to know what the net effect of different primer pocket depth is. All of my primers are touching the bottom. Others have done similar tests, but all with the same cases having the same pocket depth. Different makers of cases manufacturer them to different depth. Ive got cases with pocket depths ranging from: .125 from federal, 127 from LC, .129 from hornady, and .130 from lapua. (I did sort all cases to the same depth prior to test.) I'm only dealing with ones from the same lot and make (LC) and only two selected depths: .127 and .130 which represents the bulk of my case stash. As opposed to primer seated depth with relation to crush. Not testing the actual crush. They all touch the bottom. The cases I'm using came from a govt contract cancelation. They were pull downs and new, unfired. I cleaned them. which was a pita considering the primer and neck sealer used. (I use xylene here. Works better than acetone.) Then did a full length size w/neck bushing. Trimmed all cases and did the chamfer/debur. Didn't need to do annealing because they had never been fired. After all done, I inspected all one by one using my Stareett caliper, Forster case gage, and checked bump. Which was 2-3 thou. After this, I'm just curious what will happen. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primer pocket test forthcoming.
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