Koda_
Well-Known Member
to check if your scope is good...
Question on Load Development
- Thread starter griffin ordway
- Start date
I've had 5 failures on Leupold erector systems. Might be something there. Certainly won't take too many shots to figure out if something is amiss.
Koda_
Well-Known Member
I have 2 Leupold VX6's and both have been reliable but I'm aware of their reputation for not tracking, its worth testing.
Some things that have caused my POI to shift between range sessions with the same ammo has been zeroing on a warm barrel thats pencil thin, or zeroing on a fouled barrel then cleaning it.
I also had a POI shift once when I removed my stock for cleaning.
Some things that have caused my POI to shift between range sessions with the same ammo has been zeroing on a warm barrel thats pencil thin, or zeroing on a fouled barrel then cleaning it.
I also had a POI shift once when I removed my stock for cleaning.
Zeroing for hunting, you might enjoy reading this.
(2) The Carlos Hathcock Method of Sighting in a Rifle. | M14 Forum
The Carlos Hathcock Method of Sighting in a Rifle.
As mentioned before, I was a very young Marine Sergeant when I came up to THE Marine Corps Rifle Team the first time as the junior Armorer. I didn't grow up using high power rifles. We used shotguns to hunt quail, rabbits, squirrels, pheasants, ducks and geese. I used a Mark I Ruger Target...
Koda_
Well-Known Member
I did not know how Hathcock zeroed his rifles but thru my own trial and error I zero my rifles on a clean cold bore.Zeroing for hunting, you might enjoy reading this.
(2) The Carlos Hathcock Method of Sighting in a Rifle. | M14 Forum
The Carlos Hathcock Method of Sighting in a Rifle.
As mentioned before, I was a very young Marine Sergeant when I came up to THE Marine Corps Rifle Team the first time as the junior Armorer. I didn't grow up using high power rifles. We used shotguns to hunt quail, rabbits, squirrels, pheasants, ducks and geese. I used a Mark I Ruger Target...www.m14forum.com
Unless you shoot at least 20 shots, it really means nothing.
20 shot groups, minimum, will show what you really have.
That is why a group moves between sessions.
3-5, and even 10 shot groups are statistically meaningless. Small sample sizes give you poor information followed by poor decisions.
Ryeguy
Well-Known Member
Go look at some of the Rokslide scope tests and how Leupolds hold up. Could have been the ride in the truck that moved your POI. Definitely many scopes they tested they would get changes of POI just from it riding in the trucks. Swap scopes and retry?
Equalizer
Well-Known Member
I love this article and the methodology. It really makes a ton of sense. Tedious, yes. Effective, absolutely!!!Zeroing for hunting, you might enjoy reading this.
(2) The Carlos Hathcock Method of Sighting in a Rifle. | M14 Forum
The Carlos Hathcock Method of Sighting in a Rifle.
As mentioned before, I was a very young Marine Sergeant when I came up to THE Marine Corps Rifle Team the first time as the junior Armorer. I didn't grow up using high power rifles. We used shotguns to hunt quail, rabbits, squirrels, pheasants, ducks and geese. I used a Mark I Ruger Target...
I was just pointing out that .6 is not 3/16 or 3/8 for that matter.
More shots in a group will give you a better idea of the rifles/shooters capabilities yes, but there's some caveats to that. Like everyone else is saying, it's the cold bore shots that matter most.
Try to eliminate as many variables as possible. Then learn to account for the ones you cannot eliminate.
If someone understands your post to mean " go shoot 30 rounds and see what you got" they will very likely be disappointed. Factors like barrel heat. Mirage, etc will worsen the group.
Shooting 10 cold bore shots at same location and weather into same target and same poa is going to give them a pretty accurate picture of what their capabilities are. Then expand that by learning the effects of variables. Weather, elevation. Body position. Etc. Etc. Etc.
No need to shoot them all at once, over heating the barrel.
Do them as cold bore shots if you want, they will still be within your cone if you have a good rifle and load.
A "cold bore shot" is normally discounted by many because it is outside of their "bragging rights", but it is just a part of your actual group. Try 20 to 30 and see.
RichCoyle
Well-Known Member
I
I have one! I fired a 1/16" group once. So I fired another round. It blew the group to 5/16". Then I fired another. This opened the group to 9/16". The bullets were 265 grainers at 3,055 feet per second.
