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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Developing a new load, a few questions
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<blockquote data-quote="Greyfox" data-source="post: 792042" data-attributes="member: 10291"><p>It's not unusual to see variations with chronograph results. It can be lighting effects, velocity spread, or both. Generally, I like to shoot at least 3 shots, more often 5 or more to get an average velocity and ES. Flattened primers can occur with sub maxiimum pressures. I have gone as high as 76gr with 175gr. Bullets with H4831sc. I would increase your current max in ,5gr increments. If you see cratering, ejector marks, or experience a stiff bolt, I would back off a half grain,</p></blockquote><p></p>
[QUOTE="Greyfox, post: 792042, member: 10291"] It's not unusual to see variations with chronograph results. It can be lighting effects, velocity spread, or both. Generally, I like to shoot at least 3 shots, more often 5 or more to get an average velocity and ES. Flattened primers can occur with sub maxiimum pressures. I have gone as high as 76gr with 175gr. Bullets with H4831sc. I would increase your current max in ,5gr increments. If you see cratering, ejector marks, or experience a stiff bolt, I would back off a half grain, [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Developing a new load, a few questions
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