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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The big 7mm’s
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<blockquote data-quote="budlight" data-source="post: 2225255" data-attributes="member: 2939"><p>Case volume is a thing to research. Then of course reamers and dies. That's why I went with something that I can just go buy. The 7 mm STW. I'm also a long barrel fan. It's free HP, less stress on everything and longer barrel life. My 29 inch really works. Case volume is 93.3 grains of water.</p><p></p><p>When I was younger I had rifles with velocity bragging rights. Like my 30 inch 30-378 and pour 120 grains of powder into the case ever shot. The barrels lasted about 400 - 500 rounds. I don't know of anny critter that cared if It was getting hit with that extra 200 fps over the next guy.</p><p></p><p>I actually down load my calibers now and found better accuracy and and I try for even numbers like 3200 fps. It makes it easier for ballistic charts under changing weather or elevation conditions.</p><p></p><p>So look up case volumes before you decide.</p><p></p><p>7mm Rem Mag is only 82 H20. Small IMO</p><p></p><p>7 rem ultra mag is 108.1 H20 barrel burner and comes with 9 1/4 twist</p><p></p><p>The STW is a 9 twist, but aftermarket barrels can be bought with a variety of twists</p></blockquote><p></p>
[QUOTE="budlight, post: 2225255, member: 2939"] Case volume is a thing to research. Then of course reamers and dies. That's why I went with something that I can just go buy. The 7 mm STW. I'm also a long barrel fan. It's free HP, less stress on everything and longer barrel life. My 29 inch really works. Case volume is 93.3 grains of water. When I was younger I had rifles with velocity bragging rights. Like my 30 inch 30-378 and pour 120 grains of powder into the case ever shot. The barrels lasted about 400 - 500 rounds. I don't know of anny critter that cared if It was getting hit with that extra 200 fps over the next guy. I actually down load my calibers now and found better accuracy and and I try for even numbers like 3200 fps. It makes it easier for ballistic charts under changing weather or elevation conditions. So look up case volumes before you decide. 7mm Rem Mag is only 82 H20. Small IMO 7 rem ultra mag is 108.1 H20 barrel burner and comes with 9 1/4 twist The STW is a 9 twist, but aftermarket barrels can be bought with a variety of twists [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The big 7mm’s
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