Calling all ladder nerds…

Ucsdryder

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Jan 23, 2016
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And I mean that as a compliment!!!

7saum, 20" barrel, thunderbeast suppressor

145 Cutting Edge lazers .284
H4350
ADG Brass
Federal match 210 primers

Ladder from 725 yards

I had ejector marks at round 7 and round 8.

I have my idea for where I should settle on my powder charge, but curious what everyone else thinks?

Please take a look at the pictures and let me know where you'd load. The CEB expand to 1200fps according to CEB which is 1250 yards and way beyond my max effective range on elk and deer.
 

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I don't like abusing brass so 6-8 are out for me.

I would load ten more from 57-59.5 in 0.3 increments and shoot it again. And see if you get the same two different groups [1-2 and 3-5] again.
These dang bullets aren't cheap. I like your idea though. Gives me the chance to replicate my results. My idea was to go with load 3 (58.5) and call it a day. That seemed like a velocity node and in the middle of 1-2 and 4-5.

I don't want to push my brass either if I don't have to.
 
It appears to me that 1-3 is one big, wide node with a pretty substantial velocity jump from 3 to 4. I would run another test from 1-3 in smaller increments and expect to find something really tight between 2 and 3.
 
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