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accuracy
In a set of measurements, accuracy is closeness of the measurements to a specific value, while precision is the closeness of the measurements to each other.
Accuracy has two definitions:
More commonly, it is a description of systematic errors, a measure of statistical bias; low accuracy causes a difference between a result and a "true" value. ISO calls this trueness.
Alternatively, ISO defines accuracy as describing a combination of both types of observational error above (random and systematic), so high accuracy requires both high precision and high trueness.Precision is a description of random errors, a measure of statistical variability.
In simpler terms, given a set of data points from repeated measurements of the same quantity, the set can be said to be accurate if their average is close to the true value of the quantity being measured, while the set can be said to be precise if the values are close to each other. In the first, more common definition of "accuracy" above, the two concepts are independent of each other, so a particular set of data can be said to be either accurate, or precise, or both, or neither.
Like new AI AT in Pale Brown comes with the following;
- New AI 20” .308 barrel with AI brake
- AI Thumbhole Stock Kit
- Original AI Stock Kit
- AI NV Bridge
- AI NV Rail
- (3) AI Magazines
- AI Side Keymod Rails
- Big Dog Steel Bipod Spigot
- RRS Chassis Plate
- RRS Barricade Stop
SOLD...
Well I think I may have finally figured out why I’m not getting the consistency and/or accuracy out of my Mega Maten AR10 build. I was blaming it on a bad Mega barrel until recently. I was removing the muzzle brake because I wanted to try something different and I discovered this!
It looks like...
Just as the title asks. Contemplating bedding and floating a rifle that already shoots pretty well, but am thinking "If it ain't broke..." Anyone ever had bedding and floating worsen accuracy?
Have any of you folks ever checked the accuracy of your chronies, and if so, how? I've got a shooting chrony, good, or bad? The only way I ever checked mine was to shoot some top rated shotgun ammo with published velocities printed on the box. Of those I'm usually within +/- 20fps.
That said...
So I took out my RPR today and had a chance to run it for the first time. Set up with a Vortex Viper PST 6-24x50. Ran some cheap PMC Bronze as well as Hornady Black and another match grade ammo. About 60 rounds total. The range I went to requires a 25 yard "sight in" for new rifles.
So at 25...
Hate to do it, but I'm going to sell my AXMC.
I purchased the gun on this forum and built a package around it and it is amazing. I have a short action axmc that I am going to keep. I haven't been able to find a longer range around me to shoot at so I don't really need the long action. So far I...
Willing to sell just the chassis or the whole gun.
Lightly used, no scratches
Chassis only $1500 firm
Chassis and sps tactical 700 in 308 $1950
Partial trade for a handgun. Glock 19 preferred.
The Office of Inspector General (OIG) released documents regarding the audit of the National Firearms Registration and Transfer Records. The documents can be viewed here. Just thought I'd pass it along in case it is of interest. Cheers.
The CZ 452 Varmint has been in the safe for a bit and finally got to come out and play. The scope is a Browning badged Bushnell Elite 5-15. The groups were shot at 15x.
My first groups at 25 yards were looking like one hole groups. Boring. So I moved it back to 50 so I could see the difference...
OK so a month ago I asked what powder measures y'all like and some told me to try different techniques.
Well today I decided to try a different scale...my rcbs beam scale. The digital "MTM" ? scale wasn't fun to deal with really. Don't know why I used it.
So today while using my uniflow and my...
So I finally had a chance to go to the range with my gen 4 Glock 34 mos. I was somewhat disappointed with the accuracy I was getting. At 30ft I was getting 5" groups and at 40 ft about 7" groups. This was slow firing and taking my time to aim. Now I'm no pro shooter by any means but I do...
When I hunt sage rats with a centerfire, at times the noise will put them down until a take a break. Since they are nongame, OSP told me a suppressor can be used. Has anyone noticed effects on accuracy, or velocity when using a suppressor on shots from 100-400 yards? Thinking about using one on...
Took a look at CZ 75B SA in 9mm. My interest is to shoot a paper with a higher degree of accuracy with a full sized semi auto. The handgun fit my hand nicely. Line of sight seems good in the store. Crisp trigger pull as compared to other guns in the shop. Cannot afford a custom shop gun. Have...
I plan to replace my current barrel (AR15). I'm having a terrible time making a choice. Accuracy (bipod at TVGC 100 yard range) and reliability are the two most important considerations. I am torn between the 18 inch Odin 3 gun with a rifle length gas system and the LaRue 18 inch stealth with an...
I have been shooting bows since I was 6 but up until a year ago have been doing rifle hunting and am going bow hunting. What is an acceptable archery group? I have a Red Wing Hunter recurve bow and am shooting 1 inch groups all within a 3 inch circle of the bullseye at 20 yards. Is that close...
Accuracy International AE .308 - excellent condition- like new (under 100 rounds)
Swarovski Z6 3x18-50
26 inch in barrel
4 mags
hard case
sling
Absolute tack driver. These are first 2 shots at 300 yards.
$4,000.
SS mini 14 .223, safe queen with less than two boxes fired. Full accuracy systems upgrades, match barrel etc bedded into a ram line black synthetic stock, AS scope base with Burris signature rings and Nikon 2-7 scope.
$950 cash or looking for quality hanguns, 44, 357 or 9mm, quality rimfire...