Range Report Measuring groups
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Re: Measuring groups
If you have a scanner and a PC computer try this: http://www.6mmbr.com/ontargetsoftware.html
If you have a scanner and a PC computer try this: http://www.6mmbr.com/ontargetsoftware.html
Re: Measuring groups
Measure outside to outside on the longest axis. Then subtract one bullet diameter form that number.
Measure outside to outside on the longest axis. Then subtract one bullet diameter form that number.
Re: Measuring groups
Just read this post and tried out the software. Wow what a differance. I have been messuring groups the wrong way for years, or at least that is what this now tells me.
Me: 1.336 inches Them: 0.987 inches
Me: 1.206 inches Them: 0.865 inches
At least now I feel a little better.... LoL
Just read this post and tried out the software. Wow what a differance. I have been messuring groups the wrong way for years, or at least that is what this now tells me.
Me: 1.336 inches Them: 0.987 inches
Me: 1.206 inches Them: 0.865 inches
At least now I feel a little better.... LoL
Re: Measuring groups
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body">Measure outside to outside on the longest axis. Then subtract one bullet diameter form that number. </div></div>
+1, Thats the way I was taught.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body">Measure outside to outside on the longest axis. Then subtract one bullet diameter form that number. </div></div>
+1, Thats the way I was taught.
Re: Measuring groups
And...measure the diameter of a single shot on that target and use it as the bullet diameter. Depending on angle or yaw (or paper composition) the diameter of a .308 hole can vary considerably from .308 inches.
And...measure the diameter of a single shot on that target and use it as the bullet diameter. Depending on angle or yaw (or paper composition) the diameter of a .308 hole can vary considerably from .308 inches.
Re: Measuring groups
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tomcat</div><div class="ubbcode-body">So it is center to center?
</div></div>
When you measure outside to outside and subtract one bullet diameter, your result IS center to center. This is just a more accurate way of getting that measurment.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tomcat</div><div class="ubbcode-body">So it is center to center?
</div></div>
When you measure outside to outside and subtract one bullet diameter, your result IS center to center. This is just a more accurate way of getting that measurment.
Re: Measuring groups
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tomcat</div><div class="ubbcode-body">So it is center to center?
</div></div>
When you measure outside to outside and subtract one bullet diameter, your result IS center to center. This is just a more accurate way of getting that measurment. </div></div>
NOT always.
See former naval person's post. The way most people look at the scrub marks on paper, a .30-caliber bullet often makes a .270-caliber hole. Paper stretches a bit on high-speed impacts.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tomcat</div><div class="ubbcode-body">So it is center to center?
</div></div>
When you measure outside to outside and subtract one bullet diameter, your result IS center to center. This is just a more accurate way of getting that measurment. </div></div>
NOT always.
See former naval person's post. The way most people look at the scrub marks on paper, a .30-caliber bullet often makes a .270-caliber hole. Paper stretches a bit on high-speed impacts.
