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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7wsm coal
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<blockquote data-quote="Ryan55555" data-source="post: 444567" data-attributes="member: 3697"><p>Hello all -</p><p></p><p>Working on a dummy round to send so the smith can cut my chamber.</p><p></p><p>I have a Savage LA and plan to shoot the Berger 180's.</p><p></p><p>I will be using standard Win brass in 7WSM.</p><p></p><p>Please check my math on this:</p><p></p><p>Brass (Win)</p><p></p><p>OAL = 2.100</p><p>Base to neck = 1.857</p><p>Neck length = 0.243</p><p></p><p></p><p>Bullet (180 Berger)</p><p></p><p>OAL = 1.525</p><p>base to bearing surface = 0.220</p><p>bearing surface length = 0.541</p><p>ogive to tip length = 0.764</p><p></p><p></p><p>To use all of the neck on the bearing surface:</p><p></p><p>shortest COAL = 2.621 (would not want to do this)</p><p></p><p>longest COAL = 3.162</p><p></p><p></p><p>I was thinking of going 3.000 COAL. This would leave room to move the bullet in and out a little bit.</p><p></p><p></p><p>Please let me know if I am on track of missing something.</p><p></p><p>Thanks,</p><p></p><p>Ryan</p></blockquote><p></p>
[QUOTE="Ryan55555, post: 444567, member: 3697"] Hello all - Working on a dummy round to send so the smith can cut my chamber. I have a Savage LA and plan to shoot the Berger 180's. I will be using standard Win brass in 7WSM. Please check my math on this: Brass (Win) OAL = 2.100 Base to neck = 1.857 Neck length = 0.243 Bullet (180 Berger) OAL = 1.525 base to bearing surface = 0.220 bearing surface length = 0.541 ogive to tip length = 0.764 To use all of the neck on the bearing surface: shortest COAL = 2.621 (would not want to do this) longest COAL = 3.162 I was thinking of going 3.000 COAL. This would leave room to move the bullet in and out a little bit. Please let me know if I am on track of missing something. Thanks, Ryan [/QUOTE]
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7wsm coal
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