hanshi
Cannon
Maybe not sporting, but if I call a shot that's bad or have one well out of the group, I don't count that shot. I usually just fire a "replacement" shot.
Measuring group size?
- Thread starter chuck-ia
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Kind of cheating IMHO but understand why
It's your rifle, you can use whatever to determine the group size. Is it cheating to lock the rifle into a ransom rest and then fire into a blank paper and measuring the groups? No human interaction except pulling the trigger? How about taking five shots, five days in a row, from a clean, cold barrel and using a bench, and then comparing the five targets? I know of a few serious hunters that partake of dangerous game, and that's how they measure what their rifle can do....,
LD
LD
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If I could shoot groups like the graphic you put up there I wouldn't need to measure them. I'd go hunting.
If you want the most reliable method, you should use the metric used by the military, which is a statistical method called 'Circular Error Probable'. It is easy to use and can give fairly accurate results with groups as small as 10 shots.
See how it is done here: http://ctmuzzleloaders.com/ctml_experiments/accuracy/accuracy.html
See how it is done here: http://ctmuzzleloaders.com/ctml_experiments/accuracy/accuracy.html
Pete G
76 Cal.
We had a club member who claimed his rifle could shoot a 1" group @ 200 yds. I was sceptical so he showed us the target. He had 23 shots scattered on the paper and sure enough three were within an inch of each other.
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Hanshi, calling a bad shot and adding another to a group makes sense when working up a load. You are looking for the best load or what the rifle will do.
If I am shooting to see what I can do, then I’m cheating if I add a shot.
If I am shooting to see what I can do, then I’m cheating if I add a shot.
Not sure "it's the most reliable method".
First, are you locking the firearm into something like a Ransom Rest, so that the random movement of the human shooter is removed, so that you can actually test the barrel and the load?
Second, the direction of the projectile is determined, and the variation of the flight path might be due to random factors as well as controllable factors. The whole point of reloading modern ammunition to above factory par for "match" ammunition (and the whole point of very detailed loading of a muzzleloader) is to reduce the variations in the equation with the goal of nullifying some of the variation (well the goal is to nullify all ).
Depending on the range, you get additional random factors, like humidity, altitude, and rotation of the Earth. We are lucky. Most of what the modern folks deal with are not found in most of our shooting contests.
On the other hand I may not have understood the article.... wouldn't be the first time....
LD
