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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Sin
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 464576" data-attributes="member: 505"><p>I am trying to understand this cartridge. The 338 win mag is considerably shorter than the 338 RUM. So how can there be only six grains powder difference? Both the 338 RUM and the 338-300 RUM shoot best with 92-93 grains of H-1000 and 95-96 grains of Retumbo. So you are saying you are within six grains of these figures? I like the idea of it because you should get more velocity than the 338 win mag on an "06 length action. This cartridge will probably come close to the 340 wby but again in a shorter version that fits better through actions designed to fit 7mm rem mag, 300 win mag, 338 win mag, 264 win mag etc. With the 340 wby you need a long magnum action for best results so with this cartridge you would have more room to seat long bullets while still getting near 340 wby velocities. If a guy has a long magnum action he can just get a 340 wby and shoot over the counter products. It looks like it will be a booger to make brass for this thing. </p><p> </p><p>Overall I like the idea of the cartridge. I like short fat cartridges. Basically a suped up short mag. I think people are going to have a hard time coming around to a wildcat that may be difficult to make brass for. Good luck with it. I think if a manufacturer came out with it and made brass easily available this could be a winner for both the manufacturer and the consumer. The company gets a good 338 to fill a niche on a standard length magnum action. Since magnum actions from several companies only fit cartridges up to the 300 win mag well and not the longer wby and STW cases. This would put those companies into a magnum larger than those actions have comfortably been able to shoot previously. For the consumer what seems to be a very efficient 338 without getting into the big booming powder guzzlers. It could probably be shot by many without a brake.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 464576, member: 505"] I am trying to understand this cartridge. The 338 win mag is considerably shorter than the 338 RUM. So how can there be only six grains powder difference? Both the 338 RUM and the 338-300 RUM shoot best with 92-93 grains of H-1000 and 95-96 grains of Retumbo. So you are saying you are within six grains of these figures? I like the idea of it because you should get more velocity than the 338 win mag on an "06 length action. This cartridge will probably come close to the 340 wby but again in a shorter version that fits better through actions designed to fit 7mm rem mag, 300 win mag, 338 win mag, 264 win mag etc. With the 340 wby you need a long magnum action for best results so with this cartridge you would have more room to seat long bullets while still getting near 340 wby velocities. If a guy has a long magnum action he can just get a 340 wby and shoot over the counter products. It looks like it will be a booger to make brass for this thing. Overall I like the idea of the cartridge. I like short fat cartridges. Basically a suped up short mag. I think people are going to have a hard time coming around to a wildcat that may be difficult to make brass for. Good luck with it. I think if a manufacturer came out with it and made brass easily available this could be a winner for both the manufacturer and the consumer. The company gets a good 338 to fill a niche on a standard length magnum action. Since magnum actions from several companies only fit cartridges up to the 300 win mag well and not the longer wby and STW cases. This would put those companies into a magnum larger than those actions have comfortably been able to shoot previously. For the consumer what seems to be a very efficient 338 without getting into the big booming powder guzzlers. It could probably be shot by many without a brake. [/QUOTE]
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