Help with ladder test results

[Raven243]

Had read about this ladder test for load development. Tried it for the first time and i am having a little trouble desifering it. I feel like im going to want to start testing loads between 22.9-23.8 grs. I could only get out to 300 yds. Was shooting a rem. .223, hornady 69gr hpbt with varget powder. Was sunny and cool with very high wind coming from behind. Thank you any help.

 

[rduckwor]

I concur and would also look around 25.6 provided no pressure issues and so forth.

RMD

 

[jbpmidas]

23.5 if it were mine.

 

[chevytruck_83]

I would load 3 @ 25.0,25.1,25.2,25.3 and 25.4. The point of all this is to find a node that a little variance in charge will not effect the vertical. If there all the same elevation i would load a tenth down from where it starts to change impact. Then adjust the ither variables to tighten up the group. Seating depth. Neck tension if yoh so choose

 

[Tim Singleton]

25.3 for me in the middle of that node. Real nice looking bullet hole

 

[waldo1979]

25.1 or 25.2, although the lower node looks a little more stable.

 

[gilmillan1]

I believe the lower node of 23.2 to 23.8 will give you better vertical and accuracy. It will obviously be slower but more consistent.

 

[Sniper338]

23.2 to 23.8 is where you need to play.

 

[Raven243]

Thank you all so much for your help and thoughts. Ill put some together in both ranges and give it a go.

 

[Raven243]

Another quick question. At what range do you usually do this test at? The range i shoot at only goes to 300. On top of that its used up most of the time with matches so even getting on it can be hard unless i can go during the week. The second range i shoot at is a 1000 yr silhouette range which is where i would like to be shooting more. Problem is its 5.5 hours away. Makes it hard to get to to test 15 rounds. Thanks again for any help.

 

[Tim Singleton]

IMO. 300 is fine for ladder testing

 

[Raven243]

Good to know. Thanks Tim

 

[22BRGUY]

I would load 3 @ 25.0,25.1,25.2,25.3 and 25.4. The point of all this is to find a node that a little variance in charge will not effect the vertical. If there all the same elevation i would load a tenth down from where it starts to change impact. Then adjust the ither variables to tighten up the group. Seating depth. Neck tension if yoh so choose

I agree with this evaluation also. I do not look at horizontal spread at all in ladder tests, just vertical dispersion and go as high as I can without pressure indicators. JMHO

 

[Raven243]

Thank you all very much with your help. I think i have it narrowed down to testiing seating depths now. I really appreciate all the thoughts and direction in which way to go.
Kevin