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Rifles, Reloading, Optics, Equipment
Reloading
Anyone Using Benchrest Grade Primers?
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<blockquote data-quote="Greyfox" data-source="post: 1321502" data-attributes="member: 10291"><p>I also have a recently acquired Gen 2, Ruger PR in 6.5CM. Like yours, it is exceptionally accurate, even with factory 140 Hornady ELD Match. It can easily stand with my customs when it comes to accuracy. I have tested loads with Hornady, Lapua(this I'd the small primer type), and Norma(large primer). No question, the Lapua and Norma brass is more consistent in case weight and volume. They also have about 1 grain less capacity then the Hornsdy brass. Interestingly, I have found that ultimate accuracy and ES is not much different comparing all three brands. Actual velocity can vary between the brands due to the difference in case capacity. The primer pockets have stayed tight on the Hornsdy brass for 10+ reloads. I have decided to stick with the Hornady brass, the major reason being the case capacity. My most accurate and consistent load uses a 100% case capacity of H4831sc. I achieve higher velocity with the added case capacity of the Hornady brass and can keep SD under 10. I also like H4350 which can come very close to my results with H4831sc with less concern for case capacity but wanted a back-up powder because of the very poor availability of H4350. The temperature stability of H4831sc seems comparable to H4350. Both are Hogdon "Extreme" powders. While a I have experienced no pressure signs with H4831sc, I would still start 1 grain less then my loads shown below. All my loads for this rifle use Fed210M primers. As a side note, I found that my Ruger PR's barrel settled in 30-40FPS higher velocity after about 200 rounds. It has held there since at my current 500+ rounds. I also wonder how long this great barrel will last!</p><p></p><p>The left group shot at about 150 rounds, the right 300 rounds.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1321502, member: 10291"] I also have a recently acquired Gen 2, Ruger PR in 6.5CM. Like yours, it is exceptionally accurate, even with factory 140 Hornady ELD Match. It can easily stand with my customs when it comes to accuracy. I have tested loads with Hornady, Lapua(this I'd the small primer type), and Norma(large primer). No question, the Lapua and Norma brass is more consistent in case weight and volume. They also have about 1 grain less capacity then the Hornsdy brass. Interestingly, I have found that ultimate accuracy and ES is not much different comparing all three brands. Actual velocity can vary between the brands due to the difference in case capacity. The primer pockets have stayed tight on the Hornsdy brass for 10+ reloads. I have decided to stick with the Hornady brass, the major reason being the case capacity. My most accurate and consistent load uses a 100% case capacity of H4831sc. I achieve higher velocity with the added case capacity of the Hornady brass and can keep SD under 10. I also like H4350 which can come very close to my results with H4831sc with less concern for case capacity but wanted a back-up powder because of the very poor availability of H4350. The temperature stability of H4831sc seems comparable to H4350. Both are Hogdon "Extreme" powders. While a I have experienced no pressure signs with H4831sc, I would still start 1 grain less then my loads shown below. All my loads for this rifle use Fed210M primers. As a side note, I found that my Ruger PR's barrel settled in 30-40FPS higher velocity after about 200 rounds. It has held there since at my current 500+ rounds. I also wonder how long this great barrel will last! The left group shot at about 150 rounds, the right 300 rounds. [/QUOTE]
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Anyone Using Benchrest Grade Primers?
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