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Rifles, Reloading, Optics, Equipment
Reloading
How do you start working up a load?
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<blockquote data-quote="264MHC" data-source="post: 1933832" data-attributes="member: 111161"><p>The first thing I do with a new bullet is find my CBTO to the lands. Then I do quite a bit of research on powders to find one with high load density. I recently purchased Quickload and it helps this process tremendously, although powders seem to act differently in different cartridges or with different bullets in the same cartridge so it's just a highly educated guess. Relative performance of powders seems to be accurate though. </p><p></p><p>Using that information I generally load 10 rounds .015 off the lands at .5 grain increments if I'm starting from scratch, or .2 grain increments if I already have a pretty good idea of where a certain bullet weight likes to be. This has pretty much always helped to identify the velocity node I want to be in. If it was hot outside, I pick a little below the high side of the node, if it's cold, a little above the low side. From there I generally will test accuracy with 5 shots each at 200 yards at .005, .015, .025, .035, and .045 off. If I get satisfactory results I will load up 20 rounds of the best load, shoot 10 over my Magnetospeed to get solid velocity data, and 2 5 round groups to verify accuracy. If I'm not satisfied after the seating test, I may try seating deeper or fine tuning the charge but that doesn't happen often. I will then take the remainder of the first 100 and load them up to test at distance and practice. So far, if I achieve 1" groups at 200, and single digit SD's, the load has held up at distance. </p><p></p><p>I have yet to delve into testing different primers or messing with neck tension. So far I have gotten good enough results to not mess with it.</p></blockquote><p></p>
[QUOTE="264MHC, post: 1933832, member: 111161"] The first thing I do with a new bullet is find my CBTO to the lands. Then I do quite a bit of research on powders to find one with high load density. I recently purchased Quickload and it helps this process tremendously, although powders seem to act differently in different cartridges or with different bullets in the same cartridge so it’s just a highly educated guess. Relative performance of powders seems to be accurate though. Using that information I generally load 10 rounds .015 off the lands at .5 grain increments if I’m starting from scratch, or .2 grain increments if I already have a pretty good idea of where a certain bullet weight likes to be. This has pretty much always helped to identify the velocity node I want to be in. If it was hot outside, I pick a little below the high side of the node, if it’s cold, a little above the low side. From there I generally will test accuracy with 5 shots each at 200 yards at .005, .015, .025, .035, and .045 off. If I get satisfactory results I will load up 20 rounds of the best load, shoot 10 over my Magnetospeed to get solid velocity data, and 2 5 round groups to verify accuracy. If I’m not satisfied after the seating test, I may try seating deeper or fine tuning the charge but that doesn’t happen often. I will then take the remainder of the first 100 and load them up to test at distance and practice. So far, if I achieve 1” groups at 200, and single digit SD’s, the load has held up at distance. I have yet to delve into testing different primers or messing with neck tension. So far I have gotten good enough results to not mess with it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How do you start working up a load?
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