Weird Velocity: RL-16 in 30-06

rustyshackleford

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Joined
Dec 13, 2012
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595
Location
North Alabama
I've been toying with Ramshot Hunter, H-4350, and RL-16 in the 06 and I just received a brand new magnetospeed. So I shot some 180 NBT over RL-16 to measure it and I got increasing velocity with increasing powder charges up 55.4 gr, the max per Alliant, and at 55.7 the velocity dropped from 2743 ft/sec at 55.4 to ~2700-2720 (3 shots) at 55.7. Have you guys ever seen anything like that? I thought maybe it was the chrono but I shot another load I had already verified over another magneto and it checked out.
 
I've done work ups and I've never seen one drop that much. Usually for me it's been a 0.6-0.9 gr span and the velocity varies by maybe 15 ft/sec. 40 ft/sec variance doesn't seem like much of a node.
That is a big drop but you get the idea
 
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