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Confirming Drops

 
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  #1  
Old 08-17-2010, 09:07 AM
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Confirming Drops

For the past few weeks I have been out confirming and reconfirming my drop chart for a shoot where I will be responsible on targets out to 1k.
I have enjoyed doing this so much with this XP-100.

I am shooting on steel that is placed 100 yards apart from 200 yards to 1200 yards.

I start at 500 yards after I get the close drops confirmed the first time, as anything closer is sort of boring.

Here is some thoughts from the different times out.
The first date posted was the first time to shoot at these targets and getting a sense of the lay of the land.


How many of you spend time confirming drops?


7-30-2010
Where I am shooting there are some 7", 8", 10" and 12" circle targets and then some square ones (12x12 and maybe one or two is 14x14?).

Using my center-grip XP-100, chambered in 7mm SAUM, with 162 A-Max's @ 2759 fps.
Shooting was prone off of a bi-pod.
Optic is Leupold's Mark 4 FFP 6.5-20 with Holland's ART reticle.
I started at 300 yards and made all first shot connections except at two distances. I missed at 1200 yards (wind) and at 800.
Had a weird wind going on at 800. Found out later there was a stream bed that was fooling me.
My main goal was to confirm my drops for the International Tactical Riflemans Championship.
Most pleasing shot of the morning was at 1100 yards, where I made a center hit-first shot.
Target is a 7" circle.
I plan to go out a couple more times and make sure everything is fine tuned.
Match is 3 weeks from today.


7-31-2010
Went out again today. Wind and mirage was not nearly as friendly.
In other words-more misses.
I was able to see the impact difference between sunny and cloudy though.
There will be a POI change from cloudy to sunny or sunny to cloudy.
Feeling pretty confident out to 700 even with goofy wind.
Did okay at 1K too.
I was spotting for myself, so that was more challenging, as I cannot get back on target to see impacts when I miss.
I knew I was hitting at 1k, but couldn't see where because of the mirage. I assumed I didn't have enough wind. Corrected for more wind then shot one more time. When I went down range, my first two shots were perfect for wind (more vertical than I wanted though) and my third one was toward the left edge.


8-16-2010
Went out again with the the 7SAUM this morning.
No misses (100 yard increments, starting at 500 yards) until I got to 1000.
Then I missed multiple times.
Wind was swirling, changing directions, letting off etc.
With the target being a little larger than MOA, it can humble you quickly--And It Did!

Moved to 1100 and 1200 and did just fine.
Started back at 500, on again.
Then I jumped to 1K and made 2 hits in succession.
The weirdness of wind.
From the shooting position today we had wind from four distant angles while we were shooting.

Here is a picture of the specialty handgun I am using.
Ernie




I know there is a lot of talk about confirming drops, but I am curious how much time do we really spend actually doing it?
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  #2  
Old 08-17-2010, 09:36 AM
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Join Date: Feb 2002
Location: Rapid City, South dakota
Posts: 410
Re: Confirming Drops

As always you make me feel bad. Awesome shooting. Your always raising the bar for me. To answer your question, not near enough, not near enough. One day I will retire and then I will need a second job to keep my ammo supplied.
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Old 08-17-2010, 08:50 PM
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Join Date: May 2007
Location: Texas
Posts: 467
Re: Confirming Drops

I do confirm drops, but rarely shoot past 600 yards due to the ranges I have available. I can shoot 1000 yards, but it is hard to find the range available when I have someone that can go and pull targets. All paper. Reading the wind without flags is interesting! I can get dialed in pretty good during a single range session, but coming back and repeating it is a bit tougher. I wont be far off, but would find it difficult to hit a 7" plate even at 600 yards on some days if I had to start there.

Try starting at 1000 first shot and see how well you can read the wind on an average day, it ain't easy. Perfect practice makes perfect!

Thanks for sharing!
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  #4  
Old 08-17-2010, 11:36 PM
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Re: Confirming Drops

Long,
Very true.
Main goal at this point was to get the drops down.
Most of my shots will be under 600 yards this week (some will be out to 1K though), and there will be no wind flags or sighters, and I will be shooting prone.

After this weekend I will spend more time choosing a distance, doping and shooting on steel.
Practicing one shot without flags and sighters is what I do more and more after the drops are confirmed.
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  #5  
Old 08-18-2010, 03:23 AM
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Join Date: May 2001
Posts: 5,883
Re: Confirming Drops

You're doing that great shooting with a HANDGUN?????????????????????
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  #6  
Old 08-18-2010, 11:56 AM
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Join Date: Oct 2005
Location: Great Falls, MT
Posts: 710
Re: Confirming Drops

Ernie, I believe a "wiseguy" recently called you the "best handgunner in the world". Now I believe he may have been right! It was nice meeting with ya, look forward to doing it again sometime.

Take care, good luck, and God Bless

Jim
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  #7  
Old 08-18-2010, 12:31 PM
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Re: Confirming Drops

Jim,
Thank you for the kind words.
I enjoyed the visit.
E
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