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Shooting my 338 LM @ 2200 meter

 
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  #1  
Old 03-03-2012, 12:27 PM
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Join Date: Oct 2010
Location: Norway
Posts: 69
Shooting my 338 LM @ 2200 meter

I thought I should share my small experience shooting at real long range with my 338 Lapua.
I have been shooting long range for the last 2 years now, nothing real serious, but after I bought myself a rifle and had it customised to my specs, things have gotten more complicated and my shooting skills has improved, alot.

The rifle is a Rem 700 MLR Police. I removed the original barrel, too short in my opinion, and rebarreld the action with a LW barrel, being 32" long and 1.1" thick at the mussle. I also replaced the original stock with a AICS 1.5

I have been writing alot about my shooting with it on a norwegian forum, similar to this, and I have posted various videos of shooting past 1000 meters, and some good groups at 100 and 300 meters. I have not shot on paper targets past 300 meter yet, but I'm shooting steel plates out to 1300 meters.

There has been a discussion whether it is possible to shoot out to 2000 meters, and beyond. Some said it can't be done unless a whole lot of criterias are followed, and there has been alot of teori talk. I'm not the teoretic kinda guy, I like to take my rifle out to the field and actually test what is possible with my tools.

Today, I tried for 2000 meters and beyond, shooting at at rock lying next to the waterline in a fjord here where I live. Weather was perfect so I went for it.
I use Shooter, and it said I should dial 103.5 MOA for 2000 meters. I have 104 MOA in my scope (Millett LRS 5x25x56). Aimed 0.5 MIL left for spin and made the shot. Too short, I ended up at almost 6 MILS to reach the rock. My scope was at 14x so I guess it would be close to 10 MILS at 25x.

I let the silencer cool down, and made another 5 shot trial at the rock. I did not mean to hit it, as it is difficult to actually see any impacts at that range, so I was hoping to hit the water right infront of it. I did, and it is easy to se that the bullets grouped well.
I will get a big cardbord target out there soon, and get some bullet holes in it, to measure a 10 shot group. Then we will see what this caliber is all about.

This is my favorite gun of all times, and when hunting season starts in september, I hope to shoot some deer at 1000 meters, and beyond.
I shoot 300 grs SMK, using 88grs Vith N570 powder, pushing them at 861 m/sek. At 92 grs I get 910 m/sek, witch is pretty good for a standard 338 LM.

Here is the video, I'm speaking in Norwegian, but I guess you can see what I try to do.

338 Lapua Magnum @ 2200 meter.wmv - YouTube
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  #2  
Old 03-03-2012, 06:31 PM
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Re: Shooting my 338 LM @ 2200 meter

Pretty good I would not want to be standing infront of you. I think you need a bigger scope.
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  #3  
Old 03-03-2012, 07:00 PM
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Re: Shooting my 338 LM @ 2200 meter

How many fish where killed in the filming of this video
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  #4  
Old 03-06-2012, 08:16 AM
M67 M67 is offline
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Re: Shooting my 338 LM @ 2200 meter

I think you will splash that cardboard soaking wet!

Now since i am virtually Yrcans theorethically inclined internet-devil-on-the-shoulder, can someone try to explain why Shooter so badly underpredicts the come-up on this shot?


K
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Old 03-07-2012, 09:24 AM
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Location: Portland, Oregon
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Re: Shooting my 338 LM @ 2200 meter

Nice, thanks for sharing.
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  #6  
Old 03-08-2012, 08:13 AM
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Location: Fort Worth, TX
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Re: Shooting my 338 LM @ 2200 meter

Quote:
Originally Posted by M67 View Post
I think you will splash that cardboard soaking wet!

Now since i am virtually Yrcans theorethically inclined internet-devil-on-the-shoulder, can someone try to explain why Shooter so badly underpredicts the come-up on this shot?


K
Shooter is a good program that works. Ballistic programs are not magic, they simply calculate complex mathematical formulas based on provided numbers. The calculations don't lie. If the come up does not match the real world trajectory the reason is in incorrect input. To add another issue to the equation is that there are variables that affect known variables, changing what you thought to be correct, especially at extreme range. Things like BC changes over the trajectory and shedding of velocity. Possibly a colder than normal day reducing the known MV of the bullet, headwind that was not taken into account. Maybe spin drift was not enabled along with a crosswind forcing the bullet down.......all of these are but a few things that could cause false results with any ballistics program. At ranges like that it really is near to impossible to know the true inputs. Hope this helps.
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Old 03-08-2012, 05:17 PM
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Join Date: Jan 2010
Location: utah
Posts: 366
Re: Shooting my 338 LM @ 2200 meter

another thing that effects bc is humidity. shooting directly over water the humidity will be alot higher than at the weather station. the velocity is also nearing the speed of sound. most bcs are taken at around 2700 fps bullets act differently at velocity. another may be Coriolis effects. at that range there could be more than one correction(depending on the direction shot)
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