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Reloading Techniques For Reloading


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ladder test help.....

 
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  #1  
Old 06-17-2011, 07:44 PM
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Join Date: Oct 2004
Location: USA, ohio
Posts: 263
ladder test help.....

distance 520yards

13 shots
243WSSM
start load

shot #1 = 37.5gr Varget
2=37.8
3=38.1
4=38.4
5=38.7
6=39
7=39.3
8=39.6
9=39.9
10=40.2
11=40.5
12=40.8
13=41.1

looking at this, i would say stay in the #4 ->#8 powder range?
am i right?

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  #2  
Old 06-17-2011, 09:13 PM
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Join Date: Mar 2010
Location: Eastern Washington
Posts: 205
Re: ladder test help.....

That is exactly how I read it as well. I would load up some groups in that powder range and keep testing.

Good Luck, Jason
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  #3  
Old 06-18-2011, 01:00 PM
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Join Date: Dec 2005
Posts: 2,114
Re: ladder test help.....

I don't think one shot per charge weight's enough to make a qualified decision on. The best commercial match ammo in a good rifle will hold 1/2 MOA at 600 yards with a 3/10ths grain spread in charge weight; with new unfired cases at that.

The best proof your one shot per charge test's a valid one is to repeat it. Then do it again. If the results for all three tests are the same, then you're inside the ball park between loads 4 and 8.

Finally, shoot one 20-shot group to get at least 80% probability that loads the best one.
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  #4  
Old 06-18-2011, 06:19 PM
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Location: Ohio
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Re: ladder test help.....

Bart: I am new to using the ladder testing so could you explain what conclusion one could draw from shooting one 20 shot group. If only one group was fired what would the reloader use to base a comparision on.
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  #5  
Old 06-18-2011, 06:32 PM
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Join Date: Mar 2010
Location: Eastern Washington
Posts: 205
Re: ladder test help.....

Barts load development is probably terrific if you are a bench rest type shooter. But for us hunters using hunting rifles that method seems to me to be a waste of powder and bullets. But would be great for practicing shooting fundamentals, trigger time is always a good thing. The ladder test for us hunters works good because it helps us hunters save some money and time on load development so we can spend it in other areas.

Jason
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  #6  
Old 06-18-2011, 06:40 PM
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Join Date: Jun 2011
Posts: 84
Re: ladder test help.....

I start with Rifle twist (1-14 twist) So I know I want a light bullet in .223 caliber, I come up with 40-50gr bullets through reading. I then go to Feet Per Second ex. 3300 - 3400fps is what range I want to shoot in. So I grab a reloading manual and simply find those ranges, I look each one up until I find a powder/bullet combo that gives me the fps I'm looking for ex. 26gr of H335 gives me about 3400fps with a 50gr bullet. I will then load that load at + and - .5gr and see which works best and then maybe take the best and go + or & .2gr to find the best load, I haven't had to go to the + & - .2gr yet, but it's comming.

Here are some examples links to a .pdf that should help
5 Shot Groups at 100yrds:
Cooper Load data <Link
AR-15 Load data <Link

Happy Reloading

Note: I don't believe in the ladder test, it's completely pointless, maybe if you shot 3 bullets of each to see what bullet/powder combo groups the best, after all thats what we are after, this one bullet crap isn't going to do anything but waste more money...
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Last edited by B-RAD; 06-19-2011 at 08:06 AM.
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  #7  
Old 06-19-2011, 05:39 AM
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Location: Ohio
Posts: 166
Re: ladder test help.....

I think you you need a few more beers. Or maybe I do before I understand what the hell your talking about.
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