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Hunting
Long Range Hunting & Shooting
Just got my 7mm-300 win mag reamer
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<blockquote data-quote="BJH" data-source="post: 1489631" data-attributes="member: 93876"><p>I am currently running a 7mm-300 Win. on a Defiance Action and a 28" Bartlein 1:8" twist. The load mine likes best is the 195 Berger on top of 68 grains of Retumbo in Winchester brass and a Federal 215M primer. Seated 0.020" off the lands. It produces 1 hole groups consistently at 100 and the best group I have shot is 2.5" at 1,000 yards. The velocity is a on the slower end at 2862 fps. But it works so well I don't see the need to change anything.</p><p>The one thing that I had to learn the hard way was the brass my rifle likes. My gunsmith told me to use Winchester, but it is pretty ugly when unpackaged. I'm sure any of you that have used it know what I mean. Anyhow, I tried Norma and Nosler brass because it seemed to be cleaner and more consistent. The accuracy was good (under 1/2 moa consistently), but the S-D was all over the place (anywhere from 15 to 30 fps). After burning up a lot of lead and powder I got some Winchester brass and my S-D is now 3 fps and the gun performs flawlessly. </p><p>I use the 300 Win Mag Redding Competition bushing die set and step down in 3 steps. I use the 300 Win Mag Seating die with a 7mm VLD stem.</p></blockquote><p></p>
[QUOTE="BJH, post: 1489631, member: 93876"] I am currently running a 7mm-300 Win. on a Defiance Action and a 28" Bartlein 1:8" twist. The load mine likes best is the 195 Berger on top of 68 grains of Retumbo in Winchester brass and a Federal 215M primer. Seated 0.020" off the lands. It produces 1 hole groups consistently at 100 and the best group I have shot is 2.5" at 1,000 yards. The velocity is a on the slower end at 2862 fps. But it works so well I don't see the need to change anything. The one thing that I had to learn the hard way was the brass my rifle likes. My gunsmith told me to use Winchester, but it is pretty ugly when unpackaged. I'm sure any of you that have used it know what I mean. Anyhow, I tried Norma and Nosler brass because it seemed to be cleaner and more consistent. The accuracy was good (under 1/2 moa consistently), but the S-D was all over the place (anywhere from 15 to 30 fps). After burning up a lot of lead and powder I got some Winchester brass and my S-D is now 3 fps and the gun performs flawlessly. I use the 300 Win Mag Redding Competition bushing die set and step down in 3 steps. I use the 300 Win Mag Seating die with a 7mm VLD stem. [/QUOTE]
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Just got my 7mm-300 win mag reamer
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