Finding a node without Labradar
- Thread starter Oldmauser
- Start date
Ladder testing can be but its tough
I like ocw
I like ocw
Dan Newberry's OCW Load Development System
Dan Newberry OCW or Optimal Charge Weight Load Development method or system for handloading, reloading, bullets, brass, powder, primers, accurate handloads.
optimalchargeweight.embarqspace.com
You could to an Optimal Charge Weight (OCW) test that in mentioned above (edited to remove the link that was already shared)
I have also found that this article has good information as well...
I have also found that this article has good information as well...
Load Development :: Primal Rights, Inc
Precision rifles are only one part of a much larger system. You can have the most precise and accurate rifle in the world, and it will be for not without everything else being on point. The shooter must do their job by accounting for environmental conditions, breaking the shot correctly, and...
208.76.83.202
It was done for years without those tools. The tools make it easier... old school groups tested at distance
I say it does considering that "saterlees method" is a misconstrued pile of dog shit
$10 says no one can correctly tell us what the “satterlee method” is.
I ended up using graph paper initially to help me see the difference, the changes are minimal. Now I use the Ballistic-X app to measure the target and tell me how much the strings of shots vary
No it isn’t. It’s entire premise is to avoid needing a chrono.
I look for the "flat spot" and then pick a charge weight depending on the weather the day I shoot it.
For example, if it is a really hot day, I choose a charge higher within the flat spot (I think that's right), If it is colder I choose a lower charge still within the flat spot. this allows a little temperature/pressure variation for my loads giving me more wiggle room for a good load.
Distance. A chrono helps find a node without shooting way out there as it's not always an easy, controllable option. Once you get out far enough (what that means depends on what you're shooting), try a few different loads that shot well on paper at 100 and see what they do. If you've got little more vertical dispersion than what you'd expect closer in (measured in angle, not distance obviously), then chances are you've found a node.
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If by "patterns" you mean group shapes, then you are doing it wrong. Group size/shape has nothing to do with OCW.
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It's where you load up 10 rounds just off your max charge to indicate where your optimal charge should be based on velocity, and then you spend 75 more rounds confirming and second guessing yourself until you settle... trust me, I am doing it perfectly.
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Deleted member 113831
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Shoot your charge progression at dots on a straight line, left to right, low charge to high charge.
You will see your group centers rise and fall in relation to that line. There will usually be 2 or 3 groups that not only have the same relative height, but will likely group at the same clock position from point of aim.
These differences are much easier to discern if you draw a line from group center to group center and also from grouo center to point of aim.
All this much easier to see if POI is offset 1 or 2 moa from POA.
What you are looking for is where a series of close charge weights impact in the same position on target relative to their point of aim. The point being that when you throw a tad high or low or the temp is hotter or colder it doesn’t suddenly shift where it’s actually shooting. We want a stable area where slight changes don’t have substantial changes down range.
What would suck is to have a great load created but that goes to crap when 20 degrees colder because it’s not stable. We want the bullet to always be hitting at the same spot no matter the conditions. Once you’ve identified that spot you can then alter seating depth to make those groups smaller.
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OCW.
Hell you can use weaponized math to dope your rifle out to 1000 and match it up with your ballistic app to get a close estimate of MV. You don’t NEED a Chrono. They just make things easier.
Hell you can use weaponized math to dope your rifle out to 1000 and match it up with your ballistic app to get a close estimate of MV. You don’t NEED a Chrono. They just make things easier.
The one that is in the middle of that stable area. Some of those areas are 1 grain wide in some barrels and/or component combinations, some barrels are .3 grains wide, it’s really up to your testing results to show you all that info.
