243 ladder test h4350 help

[L.Sherm]

E.S doesnt mean anything at 100, I had a 3 shot group at 100 all 3 shots were identical FPS and the group sucked, 1.5."
The way I look at ladders is grouping like you have at 4,5, and 6 then play in the middle that way when you have temp changes your still in the node. Using 2 shots you can fall out easier.

 

[L.Sherm]

I would at least shoot the same ladder at 300 then if that's all you got.

 

[rockytop65]

To me it looks like you have a lower and upper node. #5 on the lower because it's a flat spot on the velocity and in the middle of a grouping with 4,5 and 6.
Same thing with 10,11 and12 I like #11.
What distance was this shot?
[/QUOTE Mr Sherm can you explain about the flat spot. I ignorant to what that is.

 

[Laguna Freak]

E.S doesnt mean anything at 100, I had a 3 shot group at 100 all 3 shots were identical FPS and the group sucked, 1.5."
The way I look at ladders is grouping like you have at 4,5, and 6 then play in the middle that way when you have temp changes your still in the node. Using 2 shots you can fall out easier.

Agreed.
However, in this case the OP has 2 loads w/ 0.3 gr variance printing in the same hole and ES = 8fps. Time to enjoy testing it downrange, IMO.

I have a feeling either, or any load between, is going to hold together well. Can't wait for him to post the 300 yd results from his backyard.

 

[L.Sherm]

Here is a good example of a node on accurateshooter.

 

[Starlite]

Here is a good example of a node on accurateshooter.

Thats what mine look like but I Shoot 20 rds (2 each) and I disqualify any shot that I truly pooch. If your not honest with yourself...well...you'll have different results when it counts. It's the Law Of Murphy.

 

[Buster Hemlock]

As others said you want to shoot a ladder test at a further distance to identify nodes via vertical dispersion/grouping. The photo L. Sherm posted is what your looking for

 

[Tiny Tim]

I think I'd do a seating test and shoot the ladder over at 300 yards. Agree with others, 4,5,6 looks good and 7,8. But hard to tell for sure at such close range. Some guns/shooters would turn in a 1" group at that distance. Also heat and light may affect your readings and loads. Is there a cooler time of day to shoot?

 

[Rilow]

I'm kind of new at this so don't have much to offer but I read these threads cause it seems like reading these load test is almost an art. To the op that comment has nothing to do with your test. I'm just amazed at how these pros decipher these test when I'm baffled sometimes. This is a good place for help for sure.

 

[wbm]

Help me understand what's going on here.

Well you are shooting a lot of ammunition and putting a lot of holes in paper.

I'm just amazed at how these pros decipher these test when I'm baffled sometimes.

I am amazed also...just for a different reason.

 

[Canhunter35]

1,2 and 7,8 possible nodes, velocity flat spots do not mean A tuned load that groups well.

 

[Beluebow]

IMO a ladder test isn't the best way to do load development at 100yrds...300 and out yes.

While low ES numbers or flat lining of velocities don't guarantee that will your rifle will shoot small at long range, it will give you a chance when you only have 100yrds to test.

I think a test like this is a better way to test if you only have 100yrds at your disposal.

 

[reubenski]

IMO a ladder test isn't the best way to do load development at 100yrds...300 and out yes.

While low ES numbers or flat lining of velocities don't guarantee that will your rifle will shoot small at long range, it will give you a chance when you only have 100yrds to test.

I think a test like this is a better way to test if you only have 100yrds at your disposal.

View attachment 204323

This is a much better example.

But I personally think this version of load development is garbage unless you meet some conditions. If this is your 3rd 6BR barrel and you pretty much already have a good starting point for a load and just need to identify flat nodes. And If you're working with very quality components and you know that you're typically shooting single digit SDs and can guarantee that one round/ charge you shot isn't an outlier in a string of 20fps SDs. And if you're using a very accurate chronograph.

Besides the fact that you're jumping a bullet 20 thou and it appears to be shooting a 3 to 4" group in total, the velocities do not appear to be consistent enough to really evaluate. There are some "beans above the franks" situations with some of the velocities, followed by a 50fps jump that kind of implies the weird low velocity is not a flat node but just a low outlier. There just really isn't enough data to go off. I would really recommend just shooting at least 3rd charges, each group of three at it's own bull similar to above in the way he laid the target out. Ensure the pasters are very horizontal so you can see elevational changes to correlate with the velocity flat spots and jumps.

This extreme sparingly way of evaluating velocity is like like trying so hard to be cheap that you end up spending more money in the long run.

 

[436]

Help me understand what's going on here. I've read we're people says not to shoot paper with a ladder test. But if not an I went by the velocity of the 2 different ones that was close I wouldn't be grouping. So help me understand. It was in the 90s when I shot this. I'm not a seasoned reloader but have been doing it a few years.

rockytop65,
You might contact G David Tubbs at http://www.davidtubb.com/ David is one of the guy's that knows about everything there is involving the .243 Win it's good and bad habits.