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2000yard MOAG pics

 
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  #1  
Old 03-07-2005, 12:54 AM
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Location: on the rifle range in Utah
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2000yard MOAG pics

As promised, here are the pics of the maiden longrange test of the MOAG. It performed better than we all expected. I thought that if one of us was to hit the 15" gong at 2 grand we would be doing well, but as it turned out, 4 guys shot the gun and 4 guys connected!
We set out pretty early so as to avoid the midday mirage. First order of business was confirming a 40" high impact above the aim point at 100 yards. With this sight-in, it gives us a 1500 yard zero without using any minutes in the scope. After boresighting and two shots, we were at 40" high. Then we set the zero on the turret, and fired a shot. It landed 1 second earlier and 500 yards closer than we wanted! [img]/ubbthreads/images/graemlins/confused.gif[/img] In the hussle to get on the gong before the mirage set in, we neglected to go up 27 minutes for a 2000 yard shot!
O.K. Brian B Dialed up 27, and the second attempt went just a tad low and left. Then we proceeded to walk him in. 7mmrhb and his son-in-law, Jared, drove down to the gong and set up about 50 yards shy and out of the way to help guide us in. After just 7 shots, Brian had deafening hit on the gong!
Then we all took turns trading places. I shot next and rang the gong high. Then it was Jared's turn, and he hit on the sixth shot. Then 7mmrhb took a turn and whacked it!
We got 3 of the 4 hits on video including a recording of 7mmrhb's hit from the gong pit. You could hear the gong hits very clearly and quite loudly from 2000 yards away. You could even hear the ones that hit the burm! That 300 grain MK hits with 1130 ft/lbs of energy at 2000!

Several things that were reinforced in todays experiment was the importance of a LOW standard deviation, uniform bullet base-to-ogive measuring, and follow up your sighter with a quick second shot to get the same condition. We noticed that bullets that were 30 fps faster than the others landed a good 60" higher. And the different length bullets changed the internal ballistics enough to raise the velocity about 50 fps. Luckily, I segregated all the bullets into rows according to the ogive length so we could account for the different ballistics.

We were running 96 grains of RL25 behind the 300 MK. WIth bullets all measuring the same ogive, we were getting SD's of 6,7, and 8. Average velocity was 3005.

Another thing that we noticed was when the wind shifted by the gong so that it was blowing at us, the bullet dropped about 3 minutes more. That is over 60" of drop! [img]/ubbthreads/images/graemlins/shocked.gif[/img]

We believe that David Tubb's meplat trimming tool will help in our quest for the most consistent bullets. We will test it on our next outing and post results.

Anyway, here are the pics:

Here is us getting ready to fire.





Here is a pic of the 2000 yard range. The target circled in blue is the 100 yard target where we had to be 40" high! The green circle is around the gong! LOOONG WAAAAY!






Here's Brian getting ready to let one rip!





Here is what the gong looks like through my Swaro Spotter at 2000 yards. The scope is on 30x and the camera is zoomed all the way in.




Here is Brian checking for a hole in the box.



This one is really cool. We aimed the scope at the gong and pulled the bolt out and looked down the bore. It was pointing at the top of Mt. Timpanogos (circled in yellow) and the bullets were dropping into the gong pit! (circled in red)



Here's 7mmrhb and Brian B.




This pic is from the gong pit looking back at my truck squared in pink and in the next zip code.




Two happy dudes!




Jared's hit. Way to go Jared! Call me if you need some backup as a witness at work tomorrow!




If you can't tell, I'm happy!




All the tape spots are shots. The groups ain't bad. We fired a total of 40 shots today and if you count the tape marks, you will see that a good portion of the shots hit the box! We averaged 1 hit every 10 shots.




We found these two bullets at 2 grand. Weight retention was pretty good considering they slammed into fine gravel.



Overall, I'd say it was a good day! [img]/ubbthreads/images/graemlins/grin.gif[/img]
P.S. If some of the pics don't download, you may have to click on this post twice and wait a minute. There is a lot of info for the computer to eat.
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  #2  
Old 03-07-2005, 01:48 AM
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Re: 2000yard MOAG pics

That is some awsome stuff. I cant wait to meet you guys. It will be an absolute riot.

Today at the range Gonehuntingagain and I kept marveling about the distance that 2000 yards really is especially compared to the 600 we were shooting today. We even stopped on the road home today with one truck and tried to drive 2000 yards away with the other truck to see what it looked like. Well we couldn't find a stretch of road that was flat enough to allow us to see each other at 2K without one of us dropping behind a rolling hill. At one point we did end up looking back at a speed limit size sign from 2500 yards. I showed the family what 1 mile looked like on the drive through town since our main streets are laid out on a 1 mile grid. If you are at one stop light and can see the next one that is a mile.

1760 is a long way and 2K is longer.

It is just frickin' insane.

Thanks for the pictures. You have been coming up with some really cool stuff lately. 5 stars coming up.
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Old 03-07-2005, 11:59 AM
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Re: 2000yard MOAG pics

Really impressive . Congratulations to you all.
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Old 03-07-2005, 04:34 PM
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Join Date: Oct 2004
Location: NC
Posts: 62
Re: 2000yard MOAG pics

Hey guys those are some great pics. Down here in NC we are doing good to get 1000 yards. I was curious what your gong is made of?
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  #5  
Old 03-07-2005, 04:52 PM
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Join Date: Jan 2005
Location: Western MI
Posts: 716
Re: 2000yard MOAG pics

goodgrouper,

Thank you for sharing the story and photos. Looks like you guys are having a blast.
I've got a question for you and the boys.
What is the difference between the 338 Laupa Improved and the 338 RUM?

Keep the dialog and photos comming, I really enjoy reading your threads.

Best Regards,

JD338
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  #6  
Old 03-07-2005, 05:54 PM
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Join Date: Jan 2005
Location: OK
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Re: 2000yard MOAG pics

goodgrouper, great post! I always look forward to seeing pictures of what everybody is up to. In the picture looking back at your truck, is that a ranch or something? Looks real remote out there.
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  #7  
Old 03-07-2005, 07:29 PM
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Join Date: Jun 2007
Location: Fredericksburg VA
Posts: 4,106
Re: 2000yard MOAG pics

goodgrouper

either metplat tool from Dave Tooley or Kevin Cram (montour rifles) on this site. Kevins tool is SS and very high quality.

However with the 338, it is extremely important to sort by base to ogive. I have used the two stoney point tools but the best is the John Buhay Ogive Checker ($125) from RW Hart, page 19 on their catalog. $40 for caliber conversions. If you see David Tubbs site and his tool, John is building it for Tubbs. Base to ogive can vary by as much as .020 in same box of 500 with the 338 SMks.

BH
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