goodgrouper
tryingtobeabettergrouper
Since there ain't much going on here other than people arguing over how to grow a sport that is by it's very nature, a small niche, and never going to attract the numbers that a less technical sport will, I'll throw out a few questions that have been buggin' me for awhile.
In group shooting, every scoring official is required by law to have a Sweaney type measuring tool or something similar. And they are instructed to check a single sighter hole if there is any question on very small groups. And we have all heard about looking at bullet holes during the tuning process for elliptical shapes, etc., etc.. Further more, we've probably all measured our own holes and noticed that they are smaller than .243" yet, we know the bullet that went through there is .243" or larger.
So, my questions are these:
How large is the OD of the 6mm circle in the measuring tool supposed to be? If it is smaller than .243, how was that number determined?
Is there some regulatory body that verifies that all of these tools are the same everywhere in the country? Nobody's 6mm circle is slightly bigger than somebody else's thus affecting the group score?
And what do the scorers do when somebody's sighter hole doesn't come close to fitting the stencil circle? Why do we care what size hole the bullet punched if we know what the diameter of the bullet really was within a half thou or so?
How do the scorers deal with multiple target frame ranges where some (if not all) of the frames are not perfectly perpendicular to the bench in front of them?
Wouldn't it be a slight advantage to a shooter who's frame is perpendicular vs. some guy that has to shoot slightly across his bench at an angle at a frame that was also out of square?
I have checked squareness on every range I've been to (not much to do at night when you're camping alone at the range!) and I've only seen two or three frames that were perfectly perpendicular to the benches both left and right and up and down or top to bottom. Some folks claim to be able to tune their gun simply by bullet hole shapes alone. Well, at my home range, every bullet looks like it went thru elliptically no matter what the tune because the frames and frame material are angled horizontally and vertically.
What say you?
In group shooting, every scoring official is required by law to have a Sweaney type measuring tool or something similar. And they are instructed to check a single sighter hole if there is any question on very small groups. And we have all heard about looking at bullet holes during the tuning process for elliptical shapes, etc., etc.. Further more, we've probably all measured our own holes and noticed that they are smaller than .243" yet, we know the bullet that went through there is .243" or larger.
So, my questions are these:
How large is the OD of the 6mm circle in the measuring tool supposed to be? If it is smaller than .243, how was that number determined?
Is there some regulatory body that verifies that all of these tools are the same everywhere in the country? Nobody's 6mm circle is slightly bigger than somebody else's thus affecting the group score?
And what do the scorers do when somebody's sighter hole doesn't come close to fitting the stencil circle? Why do we care what size hole the bullet punched if we know what the diameter of the bullet really was within a half thou or so?
How do the scorers deal with multiple target frame ranges where some (if not all) of the frames are not perfectly perpendicular to the bench in front of them?
Wouldn't it be a slight advantage to a shooter who's frame is perpendicular vs. some guy that has to shoot slightly across his bench at an angle at a frame that was also out of square?
I have checked squareness on every range I've been to (not much to do at night when you're camping alone at the range!) and I've only seen two or three frames that were perfectly perpendicular to the benches both left and right and up and down or top to bottom. Some folks claim to be able to tune their gun simply by bullet hole shapes alone. Well, at my home range, every bullet looks like it went thru elliptically no matter what the tune because the frames and frame material are angled horizontally and vertically.
What say you?
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