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Rifles, Reloading, Optics, Equipment
Reloading
Berger Hybrid Seating Depth
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<blockquote data-quote="AZShooter" data-source="post: 645310" data-attributes="member: 5219"><p>I didn't know the hybrids were seating depth insensitive when I got the first offered, the .338 300 gr OTM hybrids. I seated them to kiss the rifling with a perfect square imprint from rifling. They still shoot fine from my long throated 338 RCM.</p><p></p><p>Next I seated some 105 6mm hybrid target set at max OAL to fit and feed from a 6mm-284 SA with wyatt's mag box which had the bullets .065" from rifling. Worked up an accurate load with first range session never moving the bullet's position. </p><p></p><p>Next was the .308 168 hybrid target seated for max OAL to fit and feed from my wyatt's mag box altered push feed model 70 in 300 RUM. Used same powder and bracketed the charge that worked with the 168 Sierra Matchkings. I loaded two bullets for each powder charge just to see what would happen while at the 200 yd range. I was very surprized to see that two of the three charge weights had the bullets touching! I never shot the load again will most likely use those bullets in a 308 win. </p><p></p><p>Next was the .308 230 gr hybrid target bullet in the same 300 RUM. Again I started out with max OAL to fit and feed from magazine box. Found best performing load then tweaked the seating depth deeper to tighten up the groups. </p><p></p><p>I am impressed that all bullets tried shot well. So one had to have seating depth tweaked, no big deal. At least all bullets shot well something I cannot say about trying VLDs. VLDs have been troublesome by comparison with many rifles refusing to shoot them well at all. </p><p></p><p>Cannot recommend a specific seating depth to start.....</p></blockquote><p></p>
[QUOTE="AZShooter, post: 645310, member: 5219"] I didn't know the hybrids were seating depth insensitive when I got the first offered, the .338 300 gr OTM hybrids. I seated them to kiss the rifling with a perfect square imprint from rifling. They still shoot fine from my long throated 338 RCM. Next I seated some 105 6mm hybrid target set at max OAL to fit and feed from a 6mm-284 SA with wyatt's mag box which had the bullets .065" from rifling. Worked up an accurate load with first range session never moving the bullet's position. Next was the .308 168 hybrid target seated for max OAL to fit and feed from my wyatt's mag box altered push feed model 70 in 300 RUM. Used same powder and bracketed the charge that worked with the 168 Sierra Matchkings. I loaded two bullets for each powder charge just to see what would happen while at the 200 yd range. I was very surprized to see that two of the three charge weights had the bullets touching! I never shot the load again will most likely use those bullets in a 308 win. Next was the .308 230 gr hybrid target bullet in the same 300 RUM. Again I started out with max OAL to fit and feed from magazine box. Found best performing load then tweaked the seating depth deeper to tighten up the groups. I am impressed that all bullets tried shot well. So one had to have seating depth tweaked, no big deal. At least all bullets shot well something I cannot say about trying VLDs. VLDs have been troublesome by comparison with many rifles refusing to shoot them well at all. Cannot recommend a specific seating depth to start..... [/QUOTE]
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Reloading
Berger Hybrid Seating Depth
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