243 - IMR 4350/H1000 - 107 gr moly MK's - 28“ bbl
- Thread starter IA_shooter
- Start date
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
What is 300 yard ladder testing? Remember, I'm just a newbie to this long range stuff.
raythemanroe said:
What is 300 yard ladder testing? Remember, I'm just a newbie to this long range stuff.
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
300y target, don't worry about windage or adjustment as long as you gave your self a big enough target. In your case you are loading Imr 4350 from 39.6g to 41.2g, now if you started at 39.6g in .2 or .5g increments and worked your way up to 41.2g you notice that the different loads would throw three or so in the same area, that is called a node...You will get a node at a high charge or low, but basically it is where your barrel whip stops and starts back in the other direction (sweet spot)..Some people like to load in the middle of a node to allow for weather change and so on...Remember to watch for high pressure signs when working your way up the ladder...Time saver!!!
300y target, don't worry about windage or adjustment as long as you gave your self a big enough target. In your case you are loading Imr 4350 from 39.6g to 41.2g, now if you started at 39.6g in .2 or .5g increments and worked your way up to 41.2g you notice that the different loads would throw three or so in the same area, that is called a node...You will get a node at a high charge or low, but basically it is where your barrel whip stops and starts back in the other direction (sweet spot)..Some people like to load in the middle of a node to allow for weather change and so on...Remember to watch for high pressure signs when working your way up the ladder...Time saver!!!
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
This is a thread on the ladder testing
http://forum.snipershide.com/snipers-hide-reloading/44763-hand-loading-long-range-4-powderin.html
This is a thread on the ladder testing
http://forum.snipershide.com/snipers-hide-reloading/44763-hand-loading-long-range-4-powderin.html
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Great article. Thanks. Now I have something to load when it rains tomorrow and then shoot on Sunday. 8)
raythemanroe said:
Great article. Thanks. Now I have something to load when it rains tomorrow and then shoot on Sunday. 8)
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Got to go out and do the ladder test today @ 275 yards and it was an eye opener. Results were just as the article suggested it would be. I found a node in the 39.6-40.0-40.4 gr loads (2956 -2990 FPS range) that had less than 1/4" vertical dispersion between those 3 loads and all the others were a progressive 3/4" to 1" difference in each .4 gr difference until I hit the 2 highest loads of 41.2 and 41.6 gr (3023-3032 FPS) and then those dropped WAY down even below the tight node I had but those 2 high loads were extremely close together as well so maybe there is another node close to that upper end range I should explore as even though those loads are over max per my reloading book they still showed no signs of excessive pressure that I can see.
Next I will explore that 39.6 gr to 40.4 gr node a little further and try a ladder test @ .2 gr increments from 39.4 gr to 40.6 gr @ 500-600 yards and see what shows up.
Thanks again for all the great info guys! ;D I LOVE this site! :-*
Pic of the ladder test results.........
Trevor
Got to go out and do the ladder test today @ 275 yards and it was an eye opener. Results were just as the article suggested it would be. I found a node in the 39.6-40.0-40.4 gr loads (2956 -2990 FPS range) that had less than 1/4" vertical dispersion between those 3 loads and all the others were a progressive 3/4" to 1" difference in each .4 gr difference until I hit the 2 highest loads of 41.2 and 41.6 gr (3023-3032 FPS) and then those dropped WAY down even below the tight node I had but those 2 high loads were extremely close together as well so maybe there is another node close to that upper end range I should explore as even though those loads are over max per my reloading book they still showed no signs of excessive pressure that I can see.
Next I will explore that 39.6 gr to 40.4 gr node a little further and try a ladder test @ .2 gr increments from 39.4 gr to 40.6 gr @ 500-600 yards and see what shows up.
Thanks again for all the great info guys! ;D I LOVE this site! :-*
Pic of the ladder test results.........
Trevor
rjtfroggy
Gold $$ Contributor
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
IA, I think you are already there. I would now split the difference and load 3 at 39.8 & 3 at 41.4 see how tight they group. I would also load the same two loads a few thous. longer and a few thous. deeper while I was at it and shoot for groups with those also. You already have some touching and some very close to touching,now it is just time to decide what load to use.
IA, I think you are already there. I would now split the difference and load 3 at 39.8 & 3 at 41.4 see how tight they group. I would also load the same two loads a few thous. longer and a few thous. deeper while I was at it and shoot for groups with those also. You already have some touching and some very close to touching,now it is just time to decide what load to use.
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
I loaded the ladder test loads for the one node already @ 39.6, 39.8, 40.0, 40.2, 40.4, and 40.6 and loaded some 40.0 loads for group testing but I like your idea as it makes sense. I think I'll load some @ 41.4 and see how they group compared to the 40.0 loads I have loaded.
At what yardage is the best to shoot groups for testing?
After this round of testing I may have my final decision on which load I'm going with finally. Thanks again for all the help.
Trevor
rjtfroggy said:
I loaded the ladder test loads for the one node already @ 39.6, 39.8, 40.0, 40.2, 40.4, and 40.6 and loaded some 40.0 loads for group testing but I like your idea as it makes sense. I think I'll load some @ 41.4 and see how they group compared to the 40.0 loads I have loaded.
At what yardage is the best to shoot groups for testing?
After this round of testing I may have my final decision on which load I'm going with finally. Thanks again for all the help.
Trevor
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Some people say to back up another hundred when your refining your load..I like to see how small of a hole I can make at a hundred
Some people say to back up another hundred when your refining your load..I like to see how small of a hole I can make at a hundred
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
I have a new test load of 107 nosler custom competitions to run up the ladder Looks good out today too
I have a new test load of 107 nosler custom competitions to run up the ladder
Looks good out today tooRe: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
You already had your load!! No need for the ladder test. The two shots out of the cluster could be many things including the shooter. Remember to go from a 1/4" group to a ONE HOLE group takes a lot of pain staking work. I would load 25 of this load and get back to the bench and shoot 5 groups at your 275 yard target.
IA_shooter said:My results tonight using 41.2 gr of IMR 4350 resulted in a 5 shot 1/3" group @ 100 yards.
Chronograph results averaged 2967 FPS with a 15 FPS spread.
You already had your load!! No need for the ladder test. The two shots out of the cluster could be many things including the shooter. Remember to go from a 1/4" group to a ONE HOLE group takes a lot of pain staking work. I would load 25 of this load and get back to the bench and shoot 5 groups at your 275 yard target.
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
39-42.5g of hybrid 100
39-42.5g of hybrid 100
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
What 1holeaddict said, now work on sorting weighing and comparing The four ing's did I forget seating?
What 1holeaddict said, now work on sorting weighing and comparing
The four ing's did I forget seating?Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Assuming you already trimmed to length, deburred the flash holes and uniformed the primer pockets..This stuff can be time consuming just thinking about it
Assuming you already trimmed to length, deburred the flash holes and uniformed the primer pockets..This stuff can be time consuming just thinking about it
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Did you see any pressure signs? if not you may want to work with the higher node!! Just from your bullet selection and barrel twist I don't think your trying to shoot point blank 100-200y right?
Did you see any pressure signs? if not you may want to work with the higher node!! Just from your bullet selection and barrel twist I don't think your trying to shoot point blank 100-200y right?
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
I've got the 40.0 test loads loaded but I think I'll go load 15 of the 41.4 loads and do 100 and 300 yard groups of the 40.0 loads and the 41.4 loads and see how the results come out.
I haven't gotten to the point of fine tuning the seating depth yet but I did just order the Hornady OAL gauge and comparator inserts with an extra .243 insert and an extra comparator body so I can measure the bullets ogive and maybe start separating the bullets that way. I did the measurement for setting my seating depth the old fashioned way with a rod down the tube while holding a bullet against the riflings, etc and once I have the Hornady gauges maybe I can fine tune my seating depth to the gnats @SS.
As I'm totally new to all this and learning as I go I can say this........this is an interesting and FUN journey I'm on!
I'm convinced I'll be able to get to 1/4" MOA and hopefully with some good practice and learning even more about fine tuning my reloading habits and practicing wind reading and shooting techniques I can go out and have fun and compete this year effectively.
My whole goal when I started on this journey several weeks ago was to be able to get to the point where I can have a good amount of confidence BEFORE I ever step up to the line for my 1st ever competition.
I can't thank you guys and this site enough for all the help and information!
Trevor
I've got the 40.0 test loads loaded but I think I'll go load 15 of the 41.4 loads and do 100 and 300 yard groups of the 40.0 loads and the 41.4 loads and see how the results come out.
I haven't gotten to the point of fine tuning the seating depth yet but I did just order the Hornady OAL gauge and comparator inserts with an extra .243 insert and an extra comparator body so I can measure the bullets ogive and maybe start separating the bullets that way. I did the measurement for setting my seating depth the old fashioned way with a rod down the tube while holding a bullet against the riflings, etc and once I have the Hornady gauges maybe I can fine tune my seating depth to the gnats @SS.
As I'm totally new to all this and learning as I go I can say this........this is an interesting and FUN journey I'm on!
I'm convinced I'll be able to get to 1/4" MOA and hopefully with some good practice and learning even more about fine tuning my reloading habits and practicing wind reading and shooting techniques I can go out and have fun and compete this year effectively.
My whole goal when I started on this journey several weeks ago was to be able to get to the point where I can have a good amount of confidence BEFORE I ever step up to the line for my 1st ever competition.
I can't thank you guys and this site enough for all the help and information!
Trevor
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
No pressure signs as of yet so yes I want to work with the higher node if possible because yes, I want to shoot 600-1000 yards effectively, 100-200 yards is just too easy.
raythemanroe said:
No pressure signs as of yet so yes I want to work with the higher node if possible because yes, I want to shoot 600-1000 yards effectively, 100-200 yards is just too easy.
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
Time consuming yes, but I have found myself thoroughly enjoying every step of this process. And yes, everything is trimmed, uniformed, deburred, etc. I haven't even touched my new Lapua brass yet. I was waiting til I was sure I had everything in sync before I went to the good stuff.
raythemanroe said:Assuming you already trimmed to length, deburred the flash holes and uniformed the primer pockets..This stuff can be time consuming just thinking about it
Time consuming yes, but I have found myself thoroughly enjoying every step of this process. And yes, everything is trimmed, uniformed, deburred, etc. I haven't even touched my new Lapua brass yet. I was waiting til I was sure I had everything in sync before I went to the good stuff.
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
I like your confidence, I have a clip attached about tool-less seating depth
http://www.youtube.com/watch?v=Jv-D1mEI514
I like your confidence, I have a clip attached about tool-less seating depth
http://www.youtube.com/watch?v=Jv-D1mEI514
Raythemanroe
Bullet Whisperer
Re: 243 - IMR 4350 - 107 gr moly MK's - 28“ bbl
You'll probably notice a small jump of accuracy once you hope on the lapua brass
You'll probably notice a small jump of accuracy once you hope on the lapua brass
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