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Reloading Berger Bullets


Ladder test or round robin to find node

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Unread 04-09-2013, 02:10 PM
Silver Member
Join Date: Nov 2010
Location: deer park, wa 99006
Posts: 152
Re: Ladder test or round robin to find node

Nice thing about ladder testing is it shows you your harmonics' if you shoot it over a chrono. Example: record your speeds and it relation to poi. It can help accuracy with temperature changes, if you shoot often enough and keep good records. Such as if it shoots at 3000fps @35* and at 3050 @65* then you have already shot that speed and know the poi shift you can plan for it. Normally if I'm testing at low temps then I choose the slowest part of the node so I can help my gun stay in its node at a greater temp range. Like wise if I'm testing at mid or high temps I go with the appropriate side of the node. Also keep track of poi on each side of the node. Just my method
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Unread 04-09-2013, 05:24 PM
Platinum Member
Join Date: Oct 2007
Location: Mountians of SW NC, near Asheville
Posts: 1,595
Re: Ladder test or round robin to find node

"Any thoughts and/or opinions from you guys who've done both would be great. "

Both methods work fine, both done properly will get you to exactly the same place; how quickly you'll get there is largely up to how you do it.

Neither method will give instantly perfect results without further testing (and refining) to confirm your initial findings. And then you'll need to do it again to find the best seating depth.

IMHO, if anyone gets inconsistant results with either system it's more likely due to an erratic shooter than a failing of the testing method.
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