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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma Mag
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<blockquote data-quote="Bart B" data-source="post: 643613" data-attributes="member: 5302"><p>With no worse than 3/4 MOA accuracy at 1000 yards? I doubt that. 3/4 MOA's good accuracy at 1000 for me; that's what the long range benchresters get.</p><p></p><p>You mentioned on Sniper's Hide: <strong> 210's the other side 3150 FPs will work on a barrel so barrel life will be much shorter than a Win Mag. I would think barrel life will about 1500 rounds depending on cleaning regime. Accuracy will start to fade after 1100 rounds maybe sooner.</strong></p><p></p><p>.308 Norma Mags and .30-.338 Win. Mags (same thing, different headstamp) got about 1200 rounds of 3/4 MOA at 1000 yards as a long range prone match rifle burning 65 or so grains of powder pushing 200 grain pills out somewhat over 2900 fps. And both were king of that hill for several years. The .300 Win. Mag playing the same game got about 1000 rounds shooting the same bullets out at about 3000 fps with about 69 grains of powder. I found one site online listing the .300 Norma Mag using almost 90 grains of powder under a 200 grain bullet. And that's why my prediction's at 700 absolute maximim with a bit of luck to hold 3/4 MOA at 1000 yards.</p><p></p><p>I knew two folks in the late 1960's trying the .300 Weatherby Mag as a long range prone match rifle. Both were only 1 MOA rifles at 1000 yards but then only for about 800 rounds. As far as I know, the .300 Norma Mag burns more powder than the .300 Weatherby Mag for a given bullet weight to produce more velocity with it.</p></blockquote><p></p>
[QUOTE="Bart B, post: 643613, member: 5302"] With no worse than 3/4 MOA accuracy at 1000 yards? I doubt that. 3/4 MOA's good accuracy at 1000 for me; that's what the long range benchresters get. You mentioned on Sniper's Hide: [B] 210's the other side 3150 FPs will work on a barrel so barrel life will be much shorter than a Win Mag. I would think barrel life will about 1500 rounds depending on cleaning regime. Accuracy will start to fade after 1100 rounds maybe sooner.[/B] .308 Norma Mags and .30-.338 Win. Mags (same thing, different headstamp) got about 1200 rounds of 3/4 MOA at 1000 yards as a long range prone match rifle burning 65 or so grains of powder pushing 200 grain pills out somewhat over 2900 fps. And both were king of that hill for several years. The .300 Win. Mag playing the same game got about 1000 rounds shooting the same bullets out at about 3000 fps with about 69 grains of powder. I found one site online listing the .300 Norma Mag using almost 90 grains of powder under a 200 grain bullet. And that's why my prediction's at 700 absolute maximim with a bit of luck to hold 3/4 MOA at 1000 yards. I knew two folks in the late 1960's trying the .300 Weatherby Mag as a long range prone match rifle. Both were only 1 MOA rifles at 1000 yards but then only for about 800 rounds. As far as I know, the .300 Norma Mag burns more powder than the .300 Weatherby Mag for a given bullet weight to produce more velocity with it. [/QUOTE]
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300 Norma Mag
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