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Rifles, Reloading, Optics, Equipment
Reloading
What is a "Ladder Test"?
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<blockquote data-quote="BountyHunter" data-source="post: 81174" data-attributes="member: 12"><p><strong>Re: What is a \"Ladder Test\"?</strong></p><p></p><p>B1gBore</p><p></p><p>Was not aware anyone had mentioned 50 cal? .5 is correct for that but not any 30 cal IF you care about finding the nodes. In a 30, the node is normally .5 gr spread anyway max. Your interval needs to stay less than .5% or you will miss the node many times.</p><p></p><p>Assumed that we were talking normal calibers such as up to big 30s. Which means that .2-.3 should be the interval over a 4-6 gr difference which is the amount mentioned previously. Still done with less than 40-60 rds normally to zero, shoot ladder and fine tune load and seating depth. That includes at least 2-3 five shot groups for confirmation of group and MV also</p><p></p><p>By the way I use .3gr PI for 338 Lapua Ack Imp LR mile comp gun and LR hunting and .2 for 300WSM comp guns. Works great and I have won more than my share of matches with this method so I know it works, plus that is the way Creighton Audette set it up originally.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 81174, member: 12"] [b]Re: What is a \"Ladder Test\"?[/b] B1gBore Was not aware anyone had mentioned 50 cal? .5 is correct for that but not any 30 cal IF you care about finding the nodes. In a 30, the node is normally .5 gr spread anyway max. Your interval needs to stay less than .5% or you will miss the node many times. Assumed that we were talking normal calibers such as up to big 30s. Which means that .2-.3 should be the interval over a 4-6 gr difference which is the amount mentioned previously. Still done with less than 40-60 rds normally to zero, shoot ladder and fine tune load and seating depth. That includes at least 2-3 five shot groups for confirmation of group and MV also By the way I use .3gr PI for 338 Lapua Ack Imp LR mile comp gun and LR hunting and .2 for 300WSM comp guns. Works great and I have won more than my share of matches with this method so I know it works, plus that is the way Creighton Audette set it up originally. BH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What is a "Ladder Test"?
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