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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Re-chamber for 7RM Question...
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<blockquote data-quote="crazyhorse" data-source="post: 1548224" data-attributes="member: 3056"><p>Thanks for all of the advice so far! I'm learning as I go here while taking the next step in customizing my rifles, all the while trying not to make an expensive mistake! </p><p></p><p>A few years ago I was able to borrow a reamer from one of the local BR guys and build a 300WSM with a "tight neck" and while it was accurate, I learned to despise turning necks. I later had it set back and re chambered to the standard measurements and didn't notice any discernible difference in accuracy. </p><p></p><p>My goal for exploring a custom reamer is A) take advantage of a large mag box and extend my seating depth, and B) an attempt to gain consistency from barrel to barrel when a change is required. </p><p>Measuring my current chamber shows fired brass to be .314 and a loaded round at .311 which seems pretty good based on what you guys have illustrated as acceptable. </p><p>Wether it's coincidence or not, ive noticed getting the bullet up and out of the case and powder seems to be conducive to accuracy. Having worked with explosives for many years (and still have all my fingers), I've noticed a lot of obvious parallels to reloading as it regards to pressure, rate of burn, etc. </p><p>What I do know is that when you have the same charge and components, simply changing how they physically relate (position) to each other can make a considerable difference. The added component in making an accurate rifle is after the round is fired it now has to enter and travel down a barrel. </p><p>I'm getting way off in the weeds from the original point but it plays into my logic. All that should be clear as mud but I thoroughly enjoy exchanging thoughts and ideas in this forum!</p></blockquote><p></p>
[QUOTE="crazyhorse, post: 1548224, member: 3056"] Thanks for all of the advice so far! I'm learning as I go here while taking the next step in customizing my rifles, all the while trying not to make an expensive mistake! A few years ago I was able to borrow a reamer from one of the local BR guys and build a 300WSM with a "tight neck" and while it was accurate, I learned to despise turning necks. I later had it set back and re chambered to the standard measurements and didn't notice any discernible difference in accuracy. My goal for exploring a custom reamer is A) take advantage of a large mag box and extend my seating depth, and B) an attempt to gain consistency from barrel to barrel when a change is required. Measuring my current chamber shows fired brass to be .314 and a loaded round at .311 which seems pretty good based on what you guys have illustrated as acceptable. Wether it's coincidence or not, ive noticed getting the bullet up and out of the case and powder seems to be conducive to accuracy. Having worked with explosives for many years (and still have all my fingers), I've noticed a lot of obvious parallels to reloading as it regards to pressure, rate of burn, etc. What I do know is that when you have the same charge and components, simply changing how they physically relate (position) to each other can make a considerable difference. The added component in making an accurate rifle is after the round is fired it now has to enter and travel down a barrel. I'm getting way off in the weeds from the original point but it plays into my logic. All that should be clear as mud but I thoroughly enjoy exchanging thoughts and ideas in this forum! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Re-chamber for 7RM Question...
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