Ladder test

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welderboy

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Well after abandoning the 300 gr Bergers I decided to give the 285 gr ELD-M a try. Upon countless unsuccessful searches for a starting load, I decided that 97 would be my starting point and work up from there to 100gr. I'm using reloader 25 BTW. After a couple shots of 97gr to zero in I started the ladder test. and here are the results.
79268830_753536325122993_9159936112922198016_n.jpg

Questions and comments welcome.
Gun is 338-378 Weatherby Mark V Accumark.
Thanks Rob
 
welderboy said:
Well after abandoning the 300 gr Bergers I decided to give the 285 gr ELD-M a try. Upon countless unsuccessful searches for a starting load, I decided that 97 would be my starting point and work up from there to 100gr. I'm using reloader 25 BTW. After a couple shots of 97gr to zero in I started the ladder test. and here are the results.
79268830_753536325122993_9159936112922198016_n.jpg

Questions and comments welcome.
Gun is 338-378 Weatherby Mark V Accumark.
Thanks Rob
Click to expand...


If you are planning on shooting at 100 yards all the time, then 99gr and you are done.
 
shoot farther, load

97.5
98.0
98.5
99.0
99.5
100.0

your looking for the ones that land in the same general area with no horizontal spread, tune out the vertical with the powder load and narrow down where your accuracy node is. 300 yards is the closest I would even attempt this test because as you can see, at 100 yards everything is in the same spot, but, this is also important information because to me it says that you have the right bullet/powder combination for that rifle
 
Thanks Dave, my next step was going to be some in between loads at 300, max distance at the range. I was glad to see it grouping as close as it is after so little testing. Not sure when I can get to the range next but will report back when I do
 
I would say you need more loads to get a proper result. You need the impact point to go up, down, and up again, at the very least, to find a node.
 
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