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Rifles, Reloading, Optics, Equipment
Reloading
Peterson 300 win long brass
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<blockquote data-quote="johnnyk" data-source="post: 2318260" data-attributes="member: 307"><p>I recently finished load development for a buddy's Savage Elite in .300WinMag using the Peterson long brass and didn't notice any problems with it. I tried Retumbo, IMR8133 and settled on IMR4831. 71.5gn with WLRM primers yielded 2980fps (ES10/SD5.0) with the 200gn ELD-X.</p><p>Accuracy was sporadic (two touching & flyer) to start with but the numbers were good. I felt like I didn't need to adjust the seating depth any as I had it .010" off and it looked "short" to me and it fit his mag.</p><p>So I looked at the rifle. Barrel cleaned regularly throughout the process so I loosened the action screws from 65in/lbs (adjusted trigger to 2-2.5lbs) and retightened to 40in/lbs. Dramatic difference. All bullet holes touching with no flyers.</p><p>All I did for brass prep was take it from the container, deburr the flash holes and then deburr & chamfer the case mouth. I measured the ID of several cases and I can't remember the measurement but they seemed acceptable.</p></blockquote><p></p>
[QUOTE="johnnyk, post: 2318260, member: 307"] I recently finished load development for a buddy's Savage Elite in .300WinMag using the Peterson long brass and didn't notice any problems with it. I tried Retumbo, IMR8133 and settled on IMR4831. 71.5gn with WLRM primers yielded 2980fps (ES10/SD5.0) with the 200gn ELD-X. Accuracy was sporadic (two touching & flyer) to start with but the numbers were good. I felt like I didn't need to adjust the seating depth any as I had it .010" off and it looked "short" to me and it fit his mag. So I looked at the rifle. Barrel cleaned regularly throughout the process so I loosened the action screws from 65in/lbs (adjusted trigger to 2-2.5lbs) and retightened to 40in/lbs. Dramatic difference. All bullet holes touching with no flyers. All I did for brass prep was take it from the container, deburr the flash holes and then deburr & chamfer the case mouth. I measured the ID of several cases and I can't remember the measurement but they seemed acceptable. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Peterson 300 win long brass
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