Ladder test for 270 - The HuntingPA.com Outdoor Community
 
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post #1 of 10 (permalink) Old 11-21-2016, 03:02 PM Thread Starter
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Ladder test for 270

I worked a ladder test at 200 yds this past saturday. I only did to rounds of the ladder test.

Remington brass (from corlokts)
CCI LRP
4831sc
130gr NBT

I believe i have a node between 58-60gr.

What is the next step?
Do i work another ladder with smaller increments between 58-60gr or do i do the OCW test now?
or do i just shoot for groups?

Last edited by Zeus50; 11-21-2016 at 04:56 PM.
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post #2 of 10 (permalink) Old 11-21-2016, 04:20 PM
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What is your definition of a ladder test?

Last edited by Dogface; 11-21-2016 at 04:26 PM.
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post #3 of 10 (permalink) Old 11-21-2016, 04:33 PM Thread Starter
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shot a round at 55, 55.5, 56, 56.5.......59, 59.5,60 then did it again starting at 60 down to 55.

had a node aroudn 56ish and one around 59.

Last edited by Zeus50; 11-21-2016 at 04:51 PM.
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post #4 of 10 (permalink) Old 11-21-2016, 04:53 PM
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Be careful! 59 GR of H4350 is about 4 gr over the max shown in several manuals. Hornady 9th edition max is 55.3 gr, Hodgdon 2016 manual max is 54.3.

Rich Deerhunter
Lock Haven, PA
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post #5 of 10 (permalink) Old 11-21-2016, 04:57 PM Thread Starter
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Quote:
Originally Posted by richdeerht View Post
Be careful! 59 GR of H4350 is about 4 gr over the max shown in several manuals. Hornady 9th edition max is 55.3 gr, Hodgdon 2016 manual max is 54.3.

good call, its was 4831sc not 4350, my fault
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post #6 of 10 (permalink) Old 11-21-2016, 05:01 PM
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Nevermind, I saw the update with the powder.

What I do is do a second ladder with .3 gr increments

Then take the best mode from that and load up enough to shoot 5 shot groups.

Then I take the best from that and move on to trying different OAL until I find that sweet spot. Then I am good to go with a load until I need a new bottle of powder then I have to back off a few grains and start again.

Last edited by nomad_archer; 11-21-2016 at 05:07 PM.
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post #7 of 10 (permalink) Old 11-21-2016, 05:48 PM
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A lot of guys load 60 gr of H4831sc with 130 gr bullets. Chronos right around 3000 fps.

Rich Deerhunter
Lock Haven, PA
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post #8 of 10 (permalink) Old 11-21-2016, 11:49 PM
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Quote:
Originally Posted by richdeerht View Post
A lot of guys load 60 gr of H4831sc with 130 gr bullets. Chronos right around 3000 fps.
I have been using that load for over 30 years. It was Jack O'Connor's favorite load and it shoot good in every 270 I tried it in.
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post #9 of 10 (permalink) Old 11-21-2016, 11:51 PM
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Quote:
Originally Posted by Zeus50 View Post
shot a round at 55, 55.5, 56, 56.5.......59, 59.5,60 then did it again starting at 60 down to 55.

had a node aroudn 56ish and one around 59.

OK Thanks. I never heard it described as a ladder load.

Try that H4831 load. It just seems to work.
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post #10 of 10 (permalink) Old 12-06-2016, 04:33 PM
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I always do my ladders within .2 grains of each other. That keeps me from having to do a second ladder test. Looks like you'll have to do another test now with the shorter increments.

Mac
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