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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm Long Range
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<blockquote data-quote="Trickymissfit" data-source="post: 593760" data-attributes="member: 25383"><p>*If your looking at a 6mm remington, then go with a 1:8 twist barrel. I'd improve it, but not make it an Ackley. Have chamber neck of .264" and throat it for 105 grain Amax bullets. You want the longer neck from the 6mm no matter what you build.</p><p> </p><p>*Might also think about doing a 6mm reamed with a 6mm Ackley reamer but with a 250AI headspace. You should be able to use generic .243 brass, but with out all the issues that travel with a .243 Winchester. In otherwords a 6/250AI, but with a 6mm Ackley neck and shoulders. This round will push 105 grain bullets to 3100fps without going 70K psi like many others are doing. And with the longer neck length and the 40 degree shoulder your barrel should last a long time.</p><p> </p><p>* I stayed away from the Dasher and other improved 6BR rounds because I've always heard heard all the guys shooting them complaigning about case life and neck splits. Yet I've never had a single neck split from my lone 6BR. If it were one guy having problems I'd discount it, but when you hear it from a dozen guys you stay outta that loop.</p><p> </p><p>* The 6BG is probably the best of all the cases here. It uses generic .243 brass, and has a 30 degree shoulder with a .33" neck length. Base to shoulder length is 1.35" (I think). Kinda like a stretched 6BR without all the issues the improved cases seem to have. Will easilly push a 105 grain bullet to 2970 fps, and still not tax the bolt.</p><p> </p><p>* if speed is the game plan, then look at the 6mm Vias. This round will push bullets faster than most anything in a 24 caliber bore. Cases are made from 6.5x55 brass with the shoulder pushed back about .04". The shoulder is either 30 degree or 35 degree (can't remember) with minimum taper. It will push an 80 grain bullet as fast as a .220 Swift will push a 55 grain bullet. </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 593760, member: 25383"] *If your looking at a 6mm remington, then go with a 1:8 twist barrel. I'd improve it, but not make it an Ackley. Have chamber neck of .264" and throat it for 105 grain Amax bullets. You want the longer neck from the 6mm no matter what you build. *Might also think about doing a 6mm reamed with a 6mm Ackley reamer but with a 250AI headspace. You should be able to use generic .243 brass, but with out all the issues that travel with a .243 Winchester. In otherwords a 6/250AI, but with a 6mm Ackley neck and shoulders. This round will push 105 grain bullets to 3100fps without going 70K psi like many others are doing. And with the longer neck length and the 40 degree shoulder your barrel should last a long time. * I stayed away from the Dasher and other improved 6BR rounds because I've always heard heard all the guys shooting them complaigning about case life and neck splits. Yet I've never had a single neck split from my lone 6BR. If it were one guy having problems I'd discount it, but when you hear it from a dozen guys you stay outta that loop. * The 6BG is probably the best of all the cases here. It uses generic .243 brass, and has a 30 degree shoulder with a .33" neck length. Base to shoulder length is 1.35" (I think). Kinda like a stretched 6BR without all the issues the improved cases seem to have. Will easilly push a 105 grain bullet to 2970 fps, and still not tax the bolt. * if speed is the game plan, then look at the 6mm Vias. This round will push bullets faster than most anything in a 24 caliber bore. Cases are made from 6.5x55 brass with the shoulder pushed back about .04". The shoulder is either 30 degree or 35 degree (can't remember) with minimum taper. It will push an 80 grain bullet as fast as a .220 Swift will push a 55 grain bullet. gary [/QUOTE]
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