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A friend of mine just shot a 300yd 600-59x

Congrats Damon great shooting!!!......what cartridge did you use?
@Rope2horns Hello Norm, The cartridge is an improved version of 6BR with pronounced modifications to the outside and internal radii that integrate well with the FL sizing die geometry. As with all my cartridges, I only allow for .0015" of base growth and 1⁰ lead for better suitability with berger hybids. Capacity wise hovers between 6BR and 6BRA.

Load data
Varget Powder
Berger 105gr hybrids (length sorted)
CCI 450 magnum primers (weight sorted)
2830-2850fps
 
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First and foremost, Great Shooting!!! What was the speed of Shot #2? Perhaps you could ask the Match Director.... >30 ES and single digit SD doesn't seem to matter as much as we think......
I have nothing to blame but myself for shot #2. Wind was changing from left to right, I saw the let up and just did not give it enough value. Based on my Zero chrono readings, shot #2 was 2838 fps. Data from shootmarker does not seems to correlate well with chronograph data
 

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