N568 Vihtavuori Powder

RECCE

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I seen on another thread a guy tried it in prc and he said with 156 Berger he pressured out around the 2700 FPS
say-what.jpg
 

CA48

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According to Vihtavuori’s load data 568 will fall in between 565 and 570 speed wise. Should be another good powder option for Magnums.
This is for the 300 PRC 26”
81B0362A-1D1D-474D-8734-18307AC3DBA4.png
 

L.Sherm

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There data isn't making sense, more powder for less speed but its faster!
 

L.Sherm

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If its correct looks like it will fall in burnrate with H1000 and RL26
 

highdrum

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Tried 568 with 156s in 24" 6.5 prc. Here's my data. Shots 2-6 were under 1.5" at 200y. My freebore is long, coal is 3.072 @ 40k jump. Pretty good crunch on last charge. Had very slight click, but no bolt lift. This brass has been run very hard and is prone to clickers on occasion. Powders quite dirty, necks on charges 1-3 were heavily sooted, upper charges were better. On a side note, I run 60.2gr N570 in my 26" prc @ 3085fps. No pressure.
 

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Ladd-

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Tried 568 with 156s in 24" 6.5 prc. Here's my data. Shots 2-6 were under 1.5" at 200y. My freebore is long, coal is 3.072 @ 40k jump. Pretty good crunch on last charge. Had very slight click, but no bolt lift. This brass has been run very hard and is prone to clickers on occasion. Powders quite dirty, necks on charges 1-3 were heavily sooted, upper charges were better. On a side note, I run 60.2gr N570 in my 26" prc @ 3085fps. No pressure.
Dang. I would’ve hoped for more. The velocities are at or about what you’ll get with H1000 with that cartridge combo.
 

highdrum

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300 PRC 24" Barrel 215M Primer Lapua Brass 225ELD-M
N568
76-2605
76.5-2627
77.0-2642
77.5-2660
78.0-2675
N570
74-2697
74.5-2720
75.0-2740
75.5-2763
76.0-2787
78.5-2805
79.5-2844
80.5-2882
RL-26
74.5-2830
75.0-2860
75.5-2880
76-2905
76.5-2930
Did you find any pressure with 568? I found similarly lower than expected velocity from the 6.5prc/156eol combo.
 
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