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#6971343 - 11/24/17 01:18 PM ladder test
BassCat'99 Online   happy
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Registered: 02/15/13
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how many rounds do you load per powder charge when looking for a good load?
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#6971347 - 11/24/17 01:34 PM Re: ladder test [Re: BassCat'99]
FiremanJG Online   content
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Loc: Wolfe City, TX
One.

Short action: middle of punlished minimum is where I start. +.3 grain steps, up to published max. (If everything is looking sade, I may exceed published max.)

Long action, .4 gr incrememnts.

I've ladder tested with as few as 9 rounds fired before.
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#6971368 - 11/24/17 02:20 PM Re: ladder test [Re: BassCat'99]
bar-d Online   content
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I also normally start in middle of published data and load 3 to 5 rounds adding .3 to .5 grains per each step depending of course on powder capacity of the particular round I am working with.


Edited by bar-d (11/24/17 02:25 PM)
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#6971442 - 11/24/17 04:40 PM Re: ladder test [Re: FiremanJG]
Judd Online   content


Registered: 01/22/09
Posts: 11438
Loc: Sachse, TX
Originally Posted By: FiremanJG
One.

Short action: middle of punlished minimum is where I start. +.3 grain steps, up to published max. (If everything is looking sade, I may exceed published max.)

Long action, .4 gr incrememnts.

I've ladder tested with as few as 9 rounds fired before.


^^^^ this
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#6971613 - 11/24/17 08:27 PM Re: ladder test [Re: BassCat'99]
BassCat'99 Online   happy
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How can you determine your rifles best load with one shot per powder charge?
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#6971619 - 11/24/17 08:32 PM Re: ladder test [Re: BassCat'99]
FiremanJG Online   content
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Originally Posted By: BassCat'99
How can you determine your rifles best load with one shot per powder charge?


Same point of aim at 500 yards. "The node" will group, often sub-MOA.
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#6971628 - 11/24/17 08:40 PM Re: ladder test [Re: BassCat'99]
kmon1 Online   content
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Registered: 09/27/06
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on the steps I use the 10% rule of thumb for separation. If water capacity of the case is 50 gr I will use .5 steps, 40 .4, 30 .3gr or close to that seems to fins the load on a ladder test or at least get you close for fine tuning.

Fireman is right you can do it with 1 load each weight, Most of the time I will do 2 each and shoot 2 ladders and go from there. Shoot 300+ for your ladder yields the best results. Also try to pick a calm day or at least one with consistent wind.
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#6972016 - 11/25/17 10:29 AM Re: ladder test [Re: BassCat'99]
ChadTRG42 Online   happy
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Registered: 09/16/09
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Question- say I have a factory rifle that has a wood stock with hunting scope.
1- how would you test this rifle at 500 yards?
2- what if this rifle has a bedding issue. How do you determine the right load with this method of load work up? I often get in factory rifles that have gun issues that do not allow it to shoot well even at 100 where the groups are open or string, due to bedding issue.

Without shooting for groups at 100, how could you determine a load with a ladder method?

I ask this for realistic info for common hunting rifles I get in. Thx!


Edited by ChadTRG42 (11/25/17 10:31 AM)
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#6972026 - 11/25/17 10:37 AM Re: ladder test [Re: ChadTRG42]
FiremanJG Online   content
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Registered: 12/16/08
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Loc: Wolfe City, TX
1. You're not. You're going to have to move one of your scopes over to the rifle.

2. My policy is to duplicate the lowest charge in the ladder for 20 rounds, on a brand new barrel. I will clean, and zero to that charge, shooting 3 or 5 shot groups, fouling the barrel, and when the zero is wondering, I will tweak as necessary. Right there, you would see the problems you mentioned. We shot 17 rounds through Kyle's 6.5 Creedmoor at 100 yards this week. Then, because it's a 6.5 Creedmoor, and we know what we know about it, we went to 3 shot groups at 200 yards.

Now, had it been a cartridge I did not know so well, I would have reserved 3-5 rounds for 500 yard steel just to make sure we would be on paper right next to the steel. Then ladder test it.

In the event of a barrel with some rounds down it, I would load about 6 rounds to zero, foul after cleaning, to get on steel at 500, and 1 would be part of the ladder test.
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#6972179 - 11/25/17 03:11 PM Re: ladder test [Re: ChadTRG42]
Smokey Bear Online   content
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Registered: 05/11/17
Posts: 327
Loc: Texas
Originally Posted By: ChadTRG42
Question- say I have a factory rifle that has a wood stock with hunting scope.
1- how would you test this rifle at 500 yards?
2- what if this rifle has a bedding issue. How do you determine the right load with this method of load work up? I often get in factory rifles that have gun issues that do not allow it to shoot well even at 100 where the groups are open or string, due to bedding issue.

Without shooting for groups at 100, how could you determine a load with a ladder method?

I ask this for realistic info for common hunting rifles I get in. Thx!


If from experience, I knew a rifle had bedding issues, I would not attempt a 300 yard ladder with it. A ladder test in my opinion is a fast and reliable way to find an accuracy node in a solid shooting rifle.
Your initial time is better spent trying to understand what is keeping a poor performer from shooting well. You can't polish a turd.


Edited by Smokey Bear (11/25/17 03:16 PM)
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#6973069 - 11/26/17 04:50 PM Re: ladder test [Re: BassCat'99]
ChadTRG42 Online   happy
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Registered: 09/16/09
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^^^ Yes. But how do you know it doesn't shoot well until you shoot it? My point is, the ladder method wouldn't work on most hunting rifles. I don't see how it can be used properly.
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#6973120 - 11/26/17 05:56 PM Re: ladder test [Re: BassCat'99]
FiremanJG Online   content
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Loc: Wolfe City, TX
Why wouldn't it work?
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#6973228 - 11/26/17 07:38 PM Re: ladder test [Re: BassCat'99]
ChadTRG42 Online   happy
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Registered: 09/16/09
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Loc: Lewisville, TX
If you had a hunting rifle that had bedding issues and not grouping well, you would not know this by shooting it at longer ranges. Plus, it would give you fits keeping it on paper.

I see a lot of rifles that won't group because of bedding issues or something. And there's a fair share that are a 2 shot rifle before they start throwing shots after they heat up. I just don't see how the ladder method would work on hunting rifles, or rifles that you couldn't verify that they shot well before a ladder method.
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#6973262 - 11/26/17 07:58 PM Re: ladder test [Re: BassCat'99]
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#6973311 - 11/26/17 08:31 PM Re: ladder test [Re: BassCat'99]
tenyearsgone Online   content
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Registered: 04/21/13
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3.

I don't mind loading more rounds, because enjoy reloading. I also don't think 1 round is enough. If it hits dead center; I could've been aiming off.

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