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Rifles, Reloading, Optics, Equipment
Reloading
Load Development... what’s your process
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<blockquote data-quote="bassassassin104" data-source="post: 1689398" data-attributes="member: 28244"><p>I use the ladder test method and shoot at 500 yards. I pick a starting point for powder charge based upon book data, usually start around 30% of book max. I work in 1/3 grain increments and will seat the bullet based upon what amount of jump others have had success with. I carefully check each casing after every shot for signs of pressure and stop as soon as I see them. I will typically find a group of three and settle somewhere in the middle. Then it is just a matter of how fine do you want to tune. I take extra precautions when doing this testing. I shoot two foulers and always let the barrel cool to the roughly the same temp between each shot. Keep all the ammo out of direct sunlight and don't load the next round until the barrel has cooled. You don't want any outside factors skewing your data. I have had good success with this method. I recently acquired a decent chrono, I will definitely shoot through it during my ladder testing, it will be interesting to see if it improves my understanding of the relationship between barrel harmonics and velocity. Been at this on and off for several years and I am still learn something new every time I'm on this forum.[ATTACH=full]144649[/ATTACH]</p></blockquote><p></p>
[QUOTE="bassassassin104, post: 1689398, member: 28244"] I use the ladder test method and shoot at 500 yards. I pick a starting point for powder charge based upon book data, usually start around 30% of book max. I work in 1/3 grain increments and will seat the bullet based upon what amount of jump others have had success with. I carefully check each casing after every shot for signs of pressure and stop as soon as I see them. I will typically find a group of three and settle somewhere in the middle. Then it is just a matter of how fine do you want to tune. I take extra precautions when doing this testing. I shoot two foulers and always let the barrel cool to the roughly the same temp between each shot. Keep all the ammo out of direct sunlight and don’t load the next round until the barrel has cooled. You don’t want any outside factors skewing your data. I have had good success with this method. I recently acquired a decent chrono, I will definitely shoot through it during my ladder testing, it will be interesting to see if it improves my understanding of the relationship between barrel harmonics and velocity. Been at this on and off for several years and I am still learn something new every time I’m on this forum.[ATTACH=full]144649[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Load Development... what’s your process
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