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Long range load development at 100 yards.

/VH said:
Linko,

You should probably do whatever makes you happy however, you stated that you have been following this thread for a while. If it is your intent to develop your load by the method described in this thread, by the OP, then savageshooter86's advice to you is sound, in that regard.
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/VH

I started loading some rounds last night based on savageshooter86's advice. I do value his opinion. thanks

I could use a little additional confirmation how I see the same recommendation. See if I have this correct. we are looking for a node where the verticle is consistant. 29.2 - 29.6 meets this criterior. then the 29.4 group tightens up (lowest ES). as always I appreciate this valuable information.
 
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Linko said:
(I do not have a cronograph. Suggested to the range to buy a Labradar to rent)

Thanks for the suggestion. Being new I was going to play with between 28.0 & 28.2 & 28.8 & 29.0. now that you both identify 29.4 I think I see why. Thank you very very much, I have been trying this for weeks.
I will load some 29.4 tonight for the weekend. To start I should just try seating depth variations with this one powder level, correct. Maybe a few with BR4 primers instead of the CCI 450's also?
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try 29.3 & 29.5 as well.. starting at the seating depth you are at right now.
 
Linko said:
View attachment 995250 Hi, I have followed this thread awhile and here is my first attempt at load development. Hope this test will yield some direction for me to follow. This is 100 yds with my Savage Model 10 6 BR. the load is Lapua, Varget, Berger 105 Hybrid. I measured the round with this bullet to be 1.6650 touching the lands. I loaded these to 1.6640

Appreciate your comments.
Click to expand...

Without knowing velocities I like 28.8 and 29. I would load 28.9 and go to seating depth testing.
 
Linko said:
/VH

I started loading some rounds last night based on savageshooter86's advice. I do value his opinion. thanks

I could use a little additional confirmation how I see the same recommendation. See if I have this correct. we are looking for a node where the verticle is consistant. 29.2 - 29.6 meets this criterior. Yes then the 29.4 group tightens up (lowest ES). Ignore the fact that that group tightened up, adjust seating depth at that charge weight to tighten up the groups. I am not sure which ES you are referring to but if you mean dispersion, ignore that for the time being and adjust seating depth as savageshooter86 indicated... (if you want to be consistent with the OP's method) always I appreciate this valuable information.
Click to expand...
 
Tuning a 1000 yard gun at 100 yards is like tuning a 25 yard pistol round at 2.5 yards. You really have no sense of the various trends because the groups are so small that the long range deviations are hidden in bullet holes that are touching and overlapping.
 
SheepDog said:
Tuning a 1000 yard gun at 100 yards is like tuning a 25 yard pistol round at 2.5 yards. You really have no sense of the various trends because the groups are so small that the long range deviations are hidden in bullet holes that are touching and overlapping.
Click to expand...

This is just many of the methods available for tuning. Each end user must try all methods available and come to his/her own conclusion as to what works or doesn't work.
Sometimes a 1000 yard range is hard for some to easily access, it may be far from home, you will need a target camera or a good buddy to pull for you.

It is also hard to dispute the effectiveness of this method as Mr. Cortina whom started this thread uses it with great success and so do many other top shooters at the national level.
 
SheepDog said:
Tuning a 1000 yard gun at 100 yards is like tuning a 25 yard pistol round at 2.5 yards. You really have no sense of the various trends because the groups are so small that the long range deviations are hidden in bullet holes that are touching and overlapping.
Click to expand...
Not true at all. If you scan and score your 5 shot groups at 100 yards using a program like ON TARGET, you will find little or no confusion until you get down to 1/4 MOA or so. Even with groups smaller than that, the Center to Center measurements will be accurate down to the 1's and only your Average-to-Center measurements start to get a little vague.

I don't know where you shoot, but any 600/1000 yard F class shooter I know would be thrilled with a rifle/recipe which would reliably shoot 1/4 MOA's or better and ATC's below 0.1. Five-shot groups like those are easy to measure accurately using the correct scanning and scoring techniques.

Of course, measuring groups with a carpenter's tape or a coin will not be very productive.
 
I have my new loads completed based on the recommended 29.4 load at a spread of seating depths (10) in .003 increments. cant wait for the weekend to get to the range and try them out.

I do not have on target to analyze. I dont see it being compatible with android (my tablet) so I have to get the desktop going for that.

I am on a crash course to precision and I have to thank all the members for the guidance and assistance.
 
7050.jpeg
Linko said:
View attachment 995250 Hi, I have followed this thread awhile and here is my first attempt at load development. Hope this test will yield some direction for me to follow. This is 100 yds with my Savage Model 10 6 BR. the load is Lapua, Varget, Berger 105 Hybrid. I measured the round with this bullet to be 1.6650 touching the lands. I loaded these to 1.6640

Appreciate your comments.
Click to expand...

Here is the seating test I ran today. these are all at the load Savageshooter86 and some others on this post recommended 29.4 gr Varget. I also attached the original powder test for reference.powder test.jpg
 
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I loaded 29.4 and tested seating depth a 3 lengths 1.6660, 1.6670 & 1.6680

and also 4 primers all at 1.6670

Here are the results. (Looks like the BR-4 & GM205M group best)
The seating test was less conclusive. I didn't try the 1.6700 depth yet. I am going to rerun the depth test.
 
I prefer minimal vertical, since there is almost always some crosswind and I never attempt to dope or hold off for it when testing loads. Vertical is the indicator associated with barrel timing.
-
 
I have been busy this week.

I also run some .223 loads in my Savage F TR.

80 gr Berger VLD & Sierra 52gr MK

Here is how that played out.
20161229_091036_resized.jpg 20161229_091043_resized.jpg

I am thinking!
21.8 for the 80 gr VLD'
And
25.8 for the 52 gr SMK'
 
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