Well today I was finally able to complete both my ladder tests for my APS 25-284. I am new at this so I am not quite sure how to read the data. Both tests are way different. So here is my first test: 75 gr V-max, APS 25-284, RL-19, CCI 200.
1. 54.3 3452
2. 54.6 3397
3. 54.9 3461
4. 55.2 3482
5. 55.5 3524
6. 55.8 3518
7. 56.1 3531
8. 56.4 3561
9. 56.7 3600
10. 57.0 3686
11. 57.3 3617
12. 57.6 3684
13. 57.9 3698
14. 58.2 3714
15. 58.5 3761
16. 58.8 3761
17. 59.1 3782
18. 59.4 3819
19. 59.7 3832
20. 60.0 3824
In your post above you had the same picture for both tests. Below is the picture until you can get it working on your end and get both to show up. As you can see, this one appears to be the one for the 125 gr. ULD RBBT
I think this might be the one for the 75 grain load.
I'm already blind , now I'm going crosseyed [img]/ubbthreads/images/graemlins/crazy.gif[/img] Too many blinking lines in the way [img]/ubbthreads/images/graemlins/laugh.gif[/img] Really , a closer pic would help as its hard to track shot progression . ( thats probably just me , cuz I have such bad eyes [img]/ubbthreads/images/graemlins/grin.gif[/img] )
It looks like Shots 15 & 16 define a "spot"
Also 19 & 20
These two sets of loads had the least velocity difference.
For this cartridge I'd recommend powder changes at 0.1 grains. You may well be skipping over a node. My personal observation is that the amount of powder has more to do with nodes etc, than velocities. Just my own tho't here....
If you want to do it again, use a max of 60grains and go down in 0.1 increments. That will cover both of the above mentioned "spots".
RE: the 125 gr and RL-22:
I'd suggest using a black sharpie to label the shots. I can't read most of the labels.
Again I'd suggest 0.1 grain increments using the same max load.
There are 3 shots pretty much together at the upper right hand corner of the larger red square. Can't see the labels thus don't know if they mean anything.
Thanks for posting the data, also ss7mm. Its good experience to see the different ways things turn out.
I may be the slowest guy on the mountain . . . . but . . . . I'm on the mountain!