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3, 5 or 10
yoshmyster Member Posts: 19,954 ✭✭✭
edited August 2018 in Perry Shooter Competition Shooting and Reloading Forum
For grouping? I say 5 but dude I know say 3 and Tom happylord says 10. He says folks can get lucky with 3 or 5 but not with 10.
"Oiled bores always shoot high for me."...........never, ever go hunting or to a match with a 'clean' barrel.
Than it was 5 rounds per bull's-eye in smallbore competition
Than it turned into perfect scores and clean targets in prone position / 400 out of 400 score or 40 shots in the ten ring
That turned into who had the number of ten X hits or center dot strikes
When testing military surplus guns it went to 5 round groups than 10 round groups that an entire 20 round box
That got a wee bit ridiculous
So 5-10 at 100 yds for a rifle from a bagged bench rest became my jam
And I liked to see what happened if you fired your string relatively quickly and allowed the bbl to heat up
To each his own
Ten shots is a challenge of the shooter's consistency and IMHO, 3x 3 shot groups is a better evaluation of most hunting rifles.
Zeroing is different and once zeroed, my rifles are checked with several 1 shot(cold barrel) groups fired over 3-5 days.
A heavy recoiling gun, may only get fired 2 groups of 5 in a day.
The 505 Gibbs types are fired from a standing bench rest.
quote:For grouping? I say 5 but dude I know say 3 and Tom happylord says 10. He says folks can get lucky with 3 or 5 but not with 10.
This is one of those situations where the answer is 'it depends', because it depends on the type and style of shooting being asked about. First though two other definitions are called for:
Accuracy vs Precision
Terms: Accuracy & Precision
Category: Shooting Terminology
Application(s) of Use: Shooting of all kinds, and any projectile weapon
Definition (Accuracy): The closeness of a measured value to a standard or known value. I.E. How close a shot is to the desired point of impact.
Definition (Precision): The closeness of two or more measurements to each other. The closer together each measurement is, the more precise the instrument is. I.E. How close individual shots are to one another, regardless of point of impact.
(credit to: Breach Bang Clear from Recoil Off Grid)
There are no fixed rules if you're just at the local range banging away for entertainment. But, no matter if you're hunting or shooting some form of targets in competition, it's important to know where your cold bore shot is and just exactly where and how your chosen number of shots group. Virtually every Extended Long Range competition now requires a cold bore shot which is figured into the final point standings.
The disagreement over the number of shots often stems from a statistical point of view. The more shots in the test, the greater the understanding of the performance and consistency. But if this is a hunting scenario and if these shots aren't in the center of your point of aim, your prey may simply walk away unscathed.