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Rifles, Reloading, Optics, Equipment
Reloading
flat/blown primer within recommended specs
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<blockquote data-quote="mk443" data-source="post: 987878" data-attributes="member: 29848"><p>I agree that the chrono will give me a lot of info. I plan on shortening the length slightly and see if that has anything to do with the pressure. I removed my firing pin assembly last week and tried this method (see video) to determine when I was touching the lands and it worked great: </p><p></p><p>[ame=http://www.youtube.com/watch?v=Jv-D1mEI514&list=PLVuBaIw3GRtRmExIMmSTREXxn7_sg40aU]Bullet Seating Depth Method - YouTube[/ame]</p><p></p><p>As I said, 71 grains was right in the recommended zone and shot a great group with no pressure signs on the brass, so naturally I'm going to go down from there till I get it fine tuned. I was also told when I talked to Berger last week and they said the 180 Hybrids are so long and due to the shape have a lot more the bullet making contact with the rifling so they do create more back pressure, which is why I started low. I'm mainly just curious what the speed will be at this lower charge. Time will tell. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="mk443, post: 987878, member: 29848"] I agree that the chrono will give me a lot of info. I plan on shortening the length slightly and see if that has anything to do with the pressure. I removed my firing pin assembly last week and tried this method (see video) to determine when I was touching the lands and it worked great: [ame=http://www.youtube.com/watch?v=Jv-D1mEI514&list=PLVuBaIw3GRtRmExIMmSTREXxn7_sg40aU]Bullet Seating Depth Method - YouTube[/ame] As I said, 71 grains was right in the recommended zone and shot a great group with no pressure signs on the brass, so naturally I'm going to go down from there till I get it fine tuned. I was also told when I talked to Berger last week and they said the 180 Hybrids are so long and due to the shape have a lot more the bullet making contact with the rifling so they do create more back pressure, which is why I started low. I'm mainly just curious what the speed will be at this lower charge. Time will tell. :D [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
flat/blown primer within recommended specs
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