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The Basics, Starting Out
Ladder testing
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<blockquote data-quote="Aeolus" data-source="post: 1563310" data-attributes="member: 96493"><p>Pick the brass, primer, powder, and bullet you want to shoot. To do a full test start at the lightest powder charge and go past the max maybe a grain or do. I try and start 15 tho off lands. Load them 3 tenth of a grain and up. Example my 338 Norma I started with 87 went 87.3, 87.6 87.9, 88.2 so on. Shoot all of them in 5 shot groups over a chrono and write it down. You will see the sd and es go high to low to high 3 times. Shoot off the middle lowest es and sd. You can tune from there. Example 88.5 did good with my 338 so I did 88.3-4-5-6-7-8-9 and 88.8 shot an es of 15 so I stuck with it. Then work on seat depth, start jammed, 3 off, 5,10,15,20,30,40 one of those will give you a 1 hole 5 shot group. From there that's your load and seat depth. Check it every 400 rounds or so.</p></blockquote><p></p>
[QUOTE="Aeolus, post: 1563310, member: 96493"] Pick the brass, primer, powder, and bullet you want to shoot. To do a full test start at the lightest powder charge and go past the max maybe a grain or do. I try and start 15 tho off lands. Load them 3 tenth of a grain and up. Example my 338 Norma I started with 87 went 87.3, 87.6 87.9, 88.2 so on. Shoot all of them in 5 shot groups over a chrono and write it down. You will see the sd and es go high to low to high 3 times. Shoot off the middle lowest es and sd. You can tune from there. Example 88.5 did good with my 338 so I did 88.3-4-5-6-7-8-9 and 88.8 shot an es of 15 so I stuck with it. Then work on seat depth, start jammed, 3 off, 5,10,15,20,30,40 one of those will give you a 1 hole 5 shot group. From there that’s your load and seat depth. Check it every 400 rounds or so. [/QUOTE]
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