168 Nosler Custom Competition on the range

TackDriver284

Handloader
Feb 13, 2016
2,309
1,553
Tried out the .308 GA Precision with some Nosler 168 Custom Competitions this time after dropping the Berger 185 Juggernauts off the menu. I have selected IMR 4064, (instead of Varget) since I have two cans of it to use up, to try at 200 yards and chronoed with a Oehler. 8X fired Lapua brass full sized with bushing and Fed210M. 3 shot groups round robin style. Wind from 10 o clock variable 5 mph

42.9 grains- 2709, 2704, 2712 (8 ES)
43.2 grains- 2738, 2722, 2747 (25 ES)
43.5 grains- 2743, 2749, 2749 (5 ES)
43.8 grains- 2765, 2765, 2763 (2 ES)
44.1 grains- 2789, 2787, 2786 (3 ES)
44.4 grains- 2792, 2795, 2775 (20 ES)
44.7 grains- 2821, 2812, 2814 (9 ES)

After the test, seems that there is a node between between 43.5 and 43.8, but I may have pulled a shot off the 44.1 grain group. I will try again in .2 increments from 43.4 grains to 44.2 grains and see what pops up.

QZ5SCeul.jpg
 
I would just use the 43.8 and change the COAL that is more likely to tighten up the group, that is according to a great video by the 6.5 guys on a 10 round load development. They met with Scott Satterlee and this is what he does. Find the lowest ES and then adjust COAL. Have a look. http://www.65guys.com/10-round-load-dev ... dder-test/ I am no expert this is however what I am doing now.


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I load 43.5 of IMR 4064 and I would recommend you do the same. It looks like a relatively flat spot velocity wise. I'm getting 2740 as well.

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Very nice. 4064 is a time honored powder for the 308, and the 168 is a classic bullet. Both should serve you well.

Guy
 
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