600 to 1000 yd groups

[Ranger188]

On ave. with let's say perfect conditions, how much do your groups grow from 600 to 1000?
1.5x twice or 3 times?

 

[quest450]

2x +

 

[Fast14riot]

In F/open, I've shot cleans at both distances with same gun and load, so in MOA, group size holds up, not counting for wind.

 

[J_idaho]

So yesterday the wind was blowing 15mph+ straight in my face at 12oclock. me and the wife went for a walk and I thought I could slip one off while she was five feet in front of me some how the wind blew my fart five to ten feet in the wrong direction and I got busted. So from my point of view there is never perfect conditions. The wind is a sneaky enemy.

 

[Evan]

2x +

I agree with Mark, in LRBR, my rifle goes 2x. 2” at 600 turns into 4” at 1000.

 

[JFrank]

At 600 yards a 3 mph side wind will push a 6 mm 108 Berger about 6 inches,
The same conditions at 1000 will push that bullet over 20 inches.
My groups are not linear from one distance to the other.
I wish they were.. but there are just too many variables to say I can consistently shoot 2x or 3x, the difference.

 

[quest450]

I just checked my 8 target group aggs from Rendezvous this past June, the conditions were nowhere near perfect by any means

8 targets @600 2.131"
8 targets @1K 5.353"

 

[shoot4fun]

On ave. with let's say perfect conditions, how much do your groups grow from 600 to 1000?
1.5x twice or 3 times?

If you compare records at 600 to 1,000 (maybe not the best way) the 600 yard record is just over .3" and at 1,000 it is just over 1". That comes out to about 3X difference.
On a good weather day a winning four target 600 yard agg will be somewhere between 1.5-1.9".
Based on the same above a winning two target agg will be around 3.5".
As I haven't been able to shoot this year due to health reasons all these numbers may be off though.

 

[Don Shelton]

2x +

On a good day! For myself,probably 3x

 

[338 Mollett]

If I do my part ! LOL !

 

[DHuffman]

I just checked my 8 target group aggs from Rendezvous this past June, the conditions were nowhere near perfect by any means

8 targets @600 2.131"
8 targets @1K 5.353"

2.020"
4.807"

Over double but less than 3x

 

[Steve Donlon]

I don't have any trouble shooting good groups out to 800 yards, but at 1000, things change a lot for me Big difference. Wind is much more variable where we shoot. More flyers!

 

[tom]

40% more distance, but 60% more ballistics. So 60ish% would be close....assuming the load even holds up at 1,000.

Tom

 

[Dave M.]

I just checked my 8 target group aggs from Rendezvous this past June, the conditions were nowhere near perfect by any means

8 targets @600 2.131"
8 targets @1K 5.353"

This is just a hair over 2.5X and in line with my results as well. We measure all of our F class open groups in terms of 20 shot groups by multiplying the Height of group in MOA, by the Width of the group in MOA. We MOA SQUARED. We have literally hundreds of print out from shotmarker. It’s really easy to do if you just take a screen shot of each of your 20 shot groups (some matches won’t allow up to take a finished 20 shot group). From a quick review of several groups, from 600 to 1000 yards it appears our groups in similar conditions from 600 to 1000 yards see to increase by 2-4X (with 2X being extremely low winds, and 4X being a moderate/aggressive or quickly reversing winds).

Dave