Video sighting in distances
- Thread starter Phauxtoe
- Start date
gun_slinger_boy
.338 Win Mag
I like that you get an idea of kinda what's going on but it's assuming you're using an AR.
ProgSpear
.338 Win Mag
Actually, it's not necessarily a function of a gas or bolt gun, it's strictly ballistics. All the ballistics calculators I've seen do ask you about the height of the scope over the barrel centerline, twist, and MV, but I've not seen one ask about action type. One of my favorites:
JBM
ProgSpear
.338 Win Mag
Actually, it's not necessarily a function of a gas or bolt gun, it's strictly ballistics. All the ballistics calculators I've seen do ask you about the height of the scope over the barrel centerline, twist, and MV, but I've not seen one ask about action type. One of my favorites:
JBM
I zero at the minimum distance I will normally be shooting. After I am zeroed at that distance I work my scope dope to the other distances I will be shooting. I don't normally hold over, I would rather dial a distance.
gun_slinger_boy
.338 Win Mag
The ballistics is what I was talking about. A 50 yard zero with a 5.56 that hits (theoretically) point of aim at 200 yards doesn't translate to say 762x39. While the fundamentals are the same for different calibers the video shouldn't be mistaken to mean that every rifle that is zeroed at 50 yards will hit at point of aim at 200 yards. That's all I was saying.
ProgSpear
.338 Win Mag
Gotcha, you are absolutely correct. My bad, I misinterpreted what you were aiming at. (pun intended)
Eddie Gunks
.338 Win Mag
I'm not sure I fully understand how do agree with the man in the video. He says 100 yards zero will give hits out to 300 with very little holdover.
My ballistic table tells me that my zero hundred yard zero I'm losing over 15 inches at 300 yards, so I am holding as my chart indicates 1.4 mill. No matter what, you're still holding 15 inches high on your target. That sounds like a pretty good size hold over.
So I guess I need to know what his definition of a small holdover is, because it's not till you get out to five or 600 that you're really going to start to notice the difference in my opinion.
My ballistic table tells me that my zero hundred yard zero I'm losing over 15 inches at 300 yards, so I am holding as my chart indicates 1.4 mill. No matter what, you're still holding 15 inches high on your target. That sounds like a pretty good size hold over.
So I guess I need to know what his definition of a small holdover is, because it's not till you get out to five or 600 that you're really going to start to notice the difference in my opinion.
Eddie Gunks
.338 Win Mag
It all depends on the shooting that you plan on doing. If you're on a bench shooting at known distance at known targets maybe that works for you.
For me I have 100 yard 0n all my rifles I know all my drops for all my bullet speeds. I also have a drop reticle that I can use. When I'm engaging targets at various distances in the field at 200 300 400 yards and there's multiple engagements dialing for each one is not practical.
That being said I run time plus penalties events. Which means I need to do it as fast as possible.
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0-300 meters with an M16A2 could be done with a 25 meter zero and iron sights. Of course you are only trying to hit a man sized target with no care if it is a kill shot. I probably couldn't do it anymore unless I was wearing a corrective lense to sharpen my front sight. I do have BDC reticles on some of my rifles and know the hold over for those particular rifles but, I don't need to hit anything fast and a majority of my shooting is known distance, so dial a distance is appropriate for me. I am not hunting zombies or Russians anymore.
ProgSpear
.338 Win Mag
I'd have to watch again, but I recall him saying something like "set the dot on top of the head", which is likely 10 to 15 inches higher than a setting the dot center of mass.