J
JMack
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JJMack replied to the thread muzzle velocity - brass brand.Interesting because here in west central mountains of Pennsylvania the humidity is like a roller coaster and mostly this time of year...
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J^^^^^THIS^^^^^ Cheers.
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JJMack replied to the thread muzzle velocity - brass brand.Yes. Yes.
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JMV will change as the brass changes, and brand won't mean much to that. The worse your brass-chamber fit, the worse this will be...
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JJMack replied to the thread muzzle velocity - brass brand.Have to get some rounds down the pipe to get it settled out
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JI sometimes get 75 fps variations with a new gun not broken in
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JJMack replied to the thread muzzle velocity - brass brand.It’s a new rifle less than 50 down the pipe. Hornady brass. I shot the factory 180 eldms and am using the brass to reload from that...
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JJMack replied to the thread muzzle velocity - brass brand.Around mid to upper 2700s for the 1 x Some under 2700 with the 2x 65.7 gr 180 Berger hybrid
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JNeck tension (interference) caused by lack of annealing (brass hardness and springback) can cause some of this. But unless the brass is...
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JJMack replied to the thread muzzle velocity - brass brand.One thing I did notice was when priming the 2x brass the primers seated a little easier….slightly but noticeable
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JJMack replied to the thread muzzle velocity - brass brand.I will add that the brass in question started life as factory 180eldm ammo.
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JJMack replied to the thread muzzle velocity - brass brand.4831sc
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JI’d verify the electrical powder dispenser first against beam scale.
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JJMack replied to the thread muzzle velocity - brass brand.4831sc Dumped powder into chargemaster and proceeded to load 10 of each. Everything else exactly the same. Only difference was...
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JJMack replied to the thread muzzle velocity - brass brand.That I know of nothing on components changed. I loaded them Friday evening it was definitely cooler than when I shot today maybe 15...
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