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This Accuracy Thing

 
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  #1  
Old 07-29-2014, 06:09 PM
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Join Date: Mar 2011
Location: Reno, Nevada
Posts: 913
This Accuracy Thing

So what is good accuracy............I dont mean that one great group you shot last week, but what is a good average group? Like you go the the Range and shoot 5 5 shot groups..........................Lots of guys carry around in their wallet that one great group, we all have those but if you shot 10 five shot groups and they averaged .500 Would that be excellent, Good, or maybe just fair.............................Out at the Range the Range Master showed me a Group he shot out of his Custom .223 a real tight three shot group. I saw two others close by and asked about those .........." Oh, those are fliers I dont count those "
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  #2  
Old 07-29-2014, 10:33 PM
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Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,093
Re: This Accuracy Thing

Back in the day when I shot Benchrest if 5 5-shot groups @ 100 and 5 5-shot groups @ 200 yards didn't average around 0.3 MOA you were down on the bottom half of the standings list. For me that was 40 years ago.

I quit bench rest when H&K came out with an semi-auto 308 that would almost approach that accuracy.

Nowa days I tune to get at least 3 shots into 1/2 MOA on a consistent basis at all ranges. The shorter the range the higher the success rate.

A fella can burn up a ton of barrel life trying to get the rifle to shoot tiny groups when most of the time the problem is the driver.

Example, this afternoon while doing some bullet testing I tuned things up to get MOA accuracy @ 100 yards. The test was to see if the bullets would be consistent and hold together at extreme velocities (170 class bullets in excess of 3500 FPS MV)

After I determined that they were consistent and held together I shot a 1 MOA group @ 100 then moved to 300 to check the drop to get an idea of bc. The 3 shots @ 300 went into an MOA but drop was almost twice what it should have been.:roll eyes:

The problem …. the driver. The 100 yard group was shot from a Cabelas super hooty folding bench that I've steadied as much as possible without casting it in concrete.

I'm satisfied with MOA consistency when shooting from it. The reticle typically hovers around the 1 inch aiming dot. From that platform MOA 3 shot consistency is acceptable.

The 300 yard group was fired from a rock solid prone bipod sand bag position. The rifle never moved from the target paper when the trigger broke. Result an MOA group with twice the expected drop.

Lesson learned……again. Be SOLID and consistent in your shooting position.

A better and shorter answer set the target at long range, beyond 350 or so and fire 1 shot per day for 5 days. If you keep 'em within a half MOA of Point of Aim I'd say you're good to go.

And, ya gotta count every shot!!!!
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  #3  
Old 07-29-2014, 10:52 PM
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Join Date: Mar 2011
Location: Reno, Nevada
Posts: 913
Re: This Accuracy Thing

Well I shoot off of a Harrison bipod and a rear bunny ear bag. That's how I shoot when Varmint hunting. So I would guess that getting my rifle to shoot in the .5's would be good considering the set up?? My rifle has a 26" #4 barrel and I shoot with a Leupold 4.5-14............This is all new to me ......................Last Friday I shot three five shot groups that went ..546, .526, and .489 Im shooting a .243 AI, my first custom rifle and 48.7gr of RL 22 105 berger...............My rifle twist is 1x8

Would appreciate your input as I'm a beginner here.

Thanks
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  #4  
Old 07-29-2014, 11:29 PM
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Join Date: Feb 2008
Posts: 190
Re: This Accuracy Thing

I would say you and your rifle seem to consistently shoot 1/2 MOA at what ever distance you were shooting at. hopefully at least 100 yrds. thats usually good for long range hunting (big game). Shooting small animals (small game) might make it a challenge when the range get out there but its the consistant things that pay off. if the shooter and equiptment can shoot 1/2 moa at each distance say up to 1000 yards then that's really good Accuracy.
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  #5  
Old 07-29-2014, 11:48 PM
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Join Date: Feb 2014
Posts: 38
Re: This Accuracy Thing

I live in the real world and shoot long-range to hunt, I group 150mm(6") at 600metres and can do this 8 times out of 10 with my 338LM in field conditions thats as much accuracies I need.
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  #6  
Old 07-30-2014, 12:20 AM
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Join Date: Mar 2012
Posts: 183
Re: This Accuracy Thing

If I hit what I'm aiming at then I'm happy.
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  #7  
Old 07-30-2014, 12:28 AM
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Join Date: Feb 2014
Posts: 38
Re: This Accuracy Thing

Good point Lightflight.
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