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Rifles, Reloading, Optics, Equipment
Reloading
Am I about to blow my face off?
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<blockquote data-quote="SSG Graybush" data-source="post: 2120290" data-attributes="member: 115190"><p>You should get into the habit of doing good load development. And remember loads developed in the winter can be over pressure in the summer, so keep that in mind. Dont chase speed, consistency is what you want.</p><p> I start 2 grs below book max powder charge, and test jumps to find the accuracy node at 3 thou increments, 3 shot groups. You see groups go big big medium small small small medium big. Load on the shorter side of the jump node so as the throat erodes you stay in the node. And after a whille you know where to start with different bullets. Bergers I test 60 to 80 thou first.</p><p> Once you find the jump node, load that coal/cbto and test the charge weight from 2 grs below max to max at .1 gr increments/ 20 shots. Looking for a node accross 4 shots minimum/.4 grs that has a ES of 20 or less, which will give you a SD of 7 or less. And then load the middle charge weight and retest. And if you want you can go above max obviously if no pressure and your starting to see a higher node.</p><p> You CANT do it backwards because changing seating depth can effect speed and SD.</p><p> And by doing it this way your doing a safe ladder to find pressure and your gonna find the best load possible for that barrel bullet powder combo. My way not the way. But it works. And spending 50 rds, minimum, on a new barrel is nothing.</p><p> For starting point to test jump; a eld m or x I'd test 5 to 26 thou jump first, for Barnes 25 to 52 thou, Berger's 60 to 81 thou and Seirra's 5 to 26. All in 3 thou increments, 3 shot groups.</p><p> Others say start at 50 thou and do 5 thou increments, Berger says do 30 60 90 120 thou, see whats best and test more at the best in 5 thou increments. IMO, the problem is big jumps in freebore can jump over a node and youll be chasing your tail.</p><p> Hope this helps out.</p></blockquote><p></p>
[QUOTE="SSG Graybush, post: 2120290, member: 115190"] You should get into the habit of doing good load development. And remember loads developed in the winter can be over pressure in the summer, so keep that in mind. Dont chase speed, consistency is what you want. I start 2 grs below book max powder charge, and test jumps to find the accuracy node at 3 thou increments, 3 shot groups. You see groups go big big medium small small small medium big. Load on the shorter side of the jump node so as the throat erodes you stay in the node. And after a whille you know where to start with different bullets. Bergers I test 60 to 80 thou first. Once you find the jump node, load that coal/cbto and test the charge weight from 2 grs below max to max at .1 gr increments/ 20 shots. Looking for a node accross 4 shots minimum/.4 grs that has a ES of 20 or less, which will give you a SD of 7 or less. And then load the middle charge weight and retest. And if you want you can go above max obviously if no pressure and your starting to see a higher node. You CANT do it backwards because changing seating depth can effect speed and SD. And by doing it this way your doing a safe ladder to find pressure and your gonna find the best load possible for that barrel bullet powder combo. My way not the way. But it works. And spending 50 rds, minimum, on a new barrel is nothing. For starting point to test jump; a eld m or x I'd test 5 to 26 thou jump first, for Barnes 25 to 52 thou, Berger's 60 to 81 thou and Seirra's 5 to 26. All in 3 thou increments, 3 shot groups. Others say start at 50 thou and do 5 thou increments, Berger says do 30 60 90 120 thou, see whats best and test more at the best in 5 thou increments. IMO, the problem is big jumps in freebore can jump over a node and youll be chasing your tail. Hope this helps out. [/QUOTE]
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Reloading
Am I about to blow my face off?
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