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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 SAUM w/ 20” barrel
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<blockquote data-quote="BallisticsGuy" data-source="post: 1512963" data-attributes="member: 96226"><p>Not Fun Fact: Short barrels and magnum chambers mean huge muzzle blast with lots of flash and not much speed for all the drama that follows pressing the loud switch. </p><p></p><p>Not An Answer to Your Specific Question: A smaller case with faster burning powder would benefit your cause here. In fact, if I were to do this sort of thing I'd probably try to find a remington model 7 and slap a 20" 6.5something barrel on it where that 6.5something is based on a .473" case head. Yeah, you're all set up for 6.5SAUM but blowing a bunch of unburned powder out of the muzzle because you already have the kit for that chambering is IMHO a questionable basis for the plan. At least this way you keep the 140gn bullet weight. You'd be surprised what's left over at 800yrds from a 6.5CM or 6.5x47.</p><p></p><p>Realizing that you asked for what you asked for, here's what I think you'll find to be a more helpful answer: What you could get away with is dropping the bullet weight to something like a 100gn (nosler partition or other very tough bullet would be a virtual requirement) which would let you run a faster burning powder for less inefficient burning from the shorter tube. Velocities will still be pretty darned high even with a 20" pipe (think >3200fps). You'll get the distance and the power remaining is plenty for deer size game even at that kind of range. It won't light up the universe with muzzle flash, won't be nearly so dang brutal to shoot, recoil less, etc... and all you have to do is change to a lighter bullet and faster powder.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 1512963, member: 96226"] Not Fun Fact: Short barrels and magnum chambers mean huge muzzle blast with lots of flash and not much speed for all the drama that follows pressing the loud switch. Not An Answer to Your Specific Question: A smaller case with faster burning powder would benefit your cause here. In fact, if I were to do this sort of thing I'd probably try to find a remington model 7 and slap a 20" 6.5something barrel on it where that 6.5something is based on a .473" case head. Yeah, you're all set up for 6.5SAUM but blowing a bunch of unburned powder out of the muzzle because you already have the kit for that chambering is IMHO a questionable basis for the plan. At least this way you keep the 140gn bullet weight. You'd be surprised what's left over at 800yrds from a 6.5CM or 6.5x47. Realizing that you asked for what you asked for, here's what I think you'll find to be a more helpful answer: What you could get away with is dropping the bullet weight to something like a 100gn (nosler partition or other very tough bullet would be a virtual requirement) which would let you run a faster burning powder for less inefficient burning from the shorter tube. Velocities will still be pretty darned high even with a 20" pipe (think >3200fps). You'll get the distance and the power remaining is plenty for deer size game even at that kind of range. It won't light up the universe with muzzle flash, won't be nearly so dang brutal to shoot, recoil less, etc... and all you have to do is change to a lighter bullet and faster powder. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 SAUM w/ 20” barrel
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