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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Severely Overbore Chartidges and short barrel life myths...
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<blockquote data-quote="SHRTSHTR" data-source="post: 428746" data-attributes="member: 12514"><p>This thread has been an interesting read. Over the last couple of months I have been doing fireforming and load development on my 338 Lapua Improved.</p><p> </p><p>I pretty much used the OCW method for my load development. I found that 102gns of Retumbo gave me a slightly hard bolt lift and ejector marks. 101.5gns Retumbo and I was still getting ejector marks.</p><p> </p><p>I worked down from the above numbers and found my accuracy load right at 100gn Retumbo. My velocity is 2,940 fps with a 300gn SMK.</p><p> </p><p>If I understand this right, this is exactly what Kirby has indicated works for him. Only difference is I have 265 rounds down the tube in a couple months! A lot of this was fireforming and shooting at distance.</p><p> </p><p>I plan on trying Kirby's method on my 30-338 Lapua Improved build. Thanks Kirby.</p></blockquote><p></p>
[QUOTE="SHRTSHTR, post: 428746, member: 12514"] This thread has been an interesting read. Over the last couple of months I have been doing fireforming and load development on my 338 Lapua Improved. I pretty much used the OCW method for my load development. I found that 102gns of Retumbo gave me a slightly hard bolt lift and ejector marks. 101.5gns Retumbo and I was still getting ejector marks. I worked down from the above numbers and found my accuracy load right at 100gn Retumbo. My velocity is 2,940 fps with a 300gn SMK. If I understand this right, this is exactly what Kirby has indicated works for him. Only difference is I have 265 rounds down the tube in a couple months! A lot of this was fireforming and shooting at distance. I plan on trying Kirby's method on my 30-338 Lapua Improved build. Thanks Kirby. [/QUOTE]
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Severely Overbore Chartidges and short barrel life myths...
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