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Hunting
Long Range Hunting & Shooting
Extreme spread and standard deviation vs accuracy
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<blockquote data-quote="Tech4" data-source="post: 2927312" data-attributes="member: 112578"><p>I start 1.5 gr blow max and increase by .2 gr until I hit max or high pressure and shoot one shot at each charge weight. I test velocity at the same time. When I am done, I have an 8 shot group. If it is a good powder bullet combination it will be a small round group if not, I move on to another powder or bullet. I look for where the velocity is the most stable and load 20 at that charge weight and if the accuracy is good, I will shoot groups 200Y 300Y 400Y and if I am getting half MOA I call it good. Doing it this way I am not wasting a lot of time on the wrong powder, bullet primer combination. I have to load to mag length, so I don't mess with bullet seating depth that much.</p></blockquote><p></p>
[QUOTE="Tech4, post: 2927312, member: 112578"] I start 1.5 gr blow max and increase by .2 gr until I hit max or high pressure and shoot one shot at each charge weight. I test velocity at the same time. When I am done, I have an 8 shot group. If it is a good powder bullet combination it will be a small round group if not, I move on to another powder or bullet. I look for where the velocity is the most stable and load 20 at that charge weight and if the accuracy is good, I will shoot groups 200Y 300Y 400Y and if I am getting half MOA I call it good. Doing it this way I am not wasting a lot of time on the wrong powder, bullet primer combination. I have to load to mag length, so I don't mess with bullet seating depth that much. [/QUOTE]
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Extreme spread and standard deviation vs accuracy
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