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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm br or 284 win
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<blockquote data-quote="Trickymissfit" data-source="post: 906726" data-attributes="member: 25383"><p>the little 6BR is just a great little round. It's probably the most efficient round out there, and is also one of the most accurate rounds out of the box. With the 105/107 grain class of bullets, there are a lot of folks out there getting close to 2900fps. Now last time I looked that is pretty close to what the big cases are doing. I am pretty much maxed out at 3050fps with the 6/250 improved case (it will do 3100fps with a very hot load), and that's with about 50% less powder. Still the comparison is with the .284 case. A good size for the 7mm bore without a doubt. But bullets with similar velocities and similar B/C's have similar trajectories. The 107 Sierra has a B/C of about .55 or maybe .53 (I'm getting old and memory is shorter). I can push that bullet to 2850fps with a real good stiff load. The .284 shooting the 154 grain bullet will do similar velocities with a similar B/C. But the 162 grain Amax is another story with a .62 B/C. It'll hit the 2750fps mark with a heavy load of 4831, and should shoot a little flatter. But you'll also know it everytime you pull the trigger. Add to this, that the average Joe is wanting to use a short action Remington (known to be somewhat shorter than the others out there), and you bring to light another issue that few discover till it's too late. The .284 round shows 2.995" over all length. Kinda makes it look better (on paper) with a standard length action. The Savage short action is a little longer, and that would help. Still I think a single shot action is the ticket here. But with the 6BR you have a gazillion actions to choose from.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 906726, member: 25383"] the little 6BR is just a great little round. It's probably the most efficient round out there, and is also one of the most accurate rounds out of the box. With the 105/107 grain class of bullets, there are a lot of folks out there getting close to 2900fps. Now last time I looked that is pretty close to what the big cases are doing. I am pretty much maxed out at 3050fps with the 6/250 improved case (it will do 3100fps with a very hot load), and that's with about 50% less powder. Still the comparison is with the .284 case. A good size for the 7mm bore without a doubt. But bullets with similar velocities and similar B/C's have similar trajectories. The 107 Sierra has a B/C of about .55 or maybe .53 (I'm getting old and memory is shorter). I can push that bullet to 2850fps with a real good stiff load. The .284 shooting the 154 grain bullet will do similar velocities with a similar B/C. But the 162 grain Amax is another story with a .62 B/C. It'll hit the 2750fps mark with a heavy load of 4831, and should shoot a little flatter. But you'll also know it everytime you pull the trigger. Add to this, that the average Joe is wanting to use a short action Remington (known to be somewhat shorter than the others out there), and you bring to light another issue that few discover till it's too late. The .284 round shows 2.995" over all length. Kinda makes it look better (on paper) with a standard length action. The Savage short action is a little longer, and that would help. Still I think a single shot action is the ticket here. But with the 6BR you have a gazillion actions to choose from. gary [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
6mm br or 284 win
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