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Rifles, Reloading, Optics, Equipment
Reloading
Working up loads
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<blockquote data-quote="Engineering101" data-source="post: 1279202" data-attributes="member: 63138"><p>Cinchy</p><p> </p><p>It takes me as few as 7 shots to develop sub moa loads. It didn't used to be that way but I stumbled onto some good info which helped. Basically I discovered the Optimal Barrel Timing theory developed by Chris Long. (Checkout the paper on this subject on his website.) That paper tells you what makes an accurate load and suggests that you get a copy of QuickLoad ($150) so you know what barrel timing in milliseconds is accurate in your gun. You then make your loads so they achieve that barrel timing. Of course you also will need a good chronograph so you can calibrate your load in QuickLoad using the velocity the load produced. So you thought you were having fun before.... wait until you try this method.</p><p> </p><p>My process now is to load my data into QuickLoad describing the specifics about my rifle and components I'll be using. It gives me a suggestion for a load. I'll load one or two of those and go to the range and fire it over my CED chrono. That resulting velocity is usually close to what QuickLoad said I would get buy not close enough so I go home and tweak QuickLoad with the new info (generally you have to change the burn rate QuickLoad is using for your powder) and make 3 of the new improved load and go to the range and fire those for group size. If they are on the barrel timing node they should shoot pretty good. I may then make some very small final tweaks in the load and come back one more time to the range to confirm that the load still shoots accurately. Then it is time to go hunting.</p></blockquote><p></p>
[QUOTE="Engineering101, post: 1279202, member: 63138"] Cinchy It takes me as few as 7 shots to develop sub moa loads. It didn't used to be that way but I stumbled onto some good info which helped. Basically I discovered the Optimal Barrel Timing theory developed by Chris Long. (Checkout the paper on this subject on his website.) That paper tells you what makes an accurate load and suggests that you get a copy of QuickLoad ($150) so you know what barrel timing in milliseconds is accurate in your gun. You then make your loads so they achieve that barrel timing. Of course you also will need a good chronograph so you can calibrate your load in QuickLoad using the velocity the load produced. So you thought you were having fun before.... wait until you try this method. My process now is to load my data into QuickLoad describing the specifics about my rifle and components I'll be using. It gives me a suggestion for a load. I'll load one or two of those and go to the range and fire it over my CED chrono. That resulting velocity is usually close to what QuickLoad said I would get buy not close enough so I go home and tweak QuickLoad with the new info (generally you have to change the burn rate QuickLoad is using for your powder) and make 3 of the new improved load and go to the range and fire those for group size. If they are on the barrel timing node they should shoot pretty good. I may then make some very small final tweaks in the load and come back one more time to the range to confirm that the load still shoots accurately. Then it is time to go hunting. [/QUOTE]
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Reloading
Working up loads
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