Have you shot it at those distances to KNOW that?
No, I do not deliberately set my cross hairs high based on some theoretical calculation I've never test to try for the first time ever on a deer in the field.
Have you shot it at those distances to KNOW that?
No, I do not deliberately set my cross hairs high...
based on some theoretical calculation I've never test to try for the first time ever on a deer in the field.
If you're 4" high at 100 and hold center shoulder, you only have approximately 2" error for a good shot.
I use a 200 yard zero. That gives me no holdover to 250. At 300 I hold just inside the hairline.
My opinion is; If it's close, I want to be able to pull up and shoot offhand with as much room for error as possible.
As the range gets longer, either I have time to calculate, or I pass on the shot.
I used to know people who used that zero and they missed a lot of deer.
I always sight my hunting rifles using cold bore shots. It's kind of unfair, but I can shoot to 520yds off my back porch. Rifles that shift much from cold bore to shot number 3 don't make it to the woods. If it takes more than 2 shots, I failed as a hunter.Thanks for all the replies. This situation is for an open space rifle in 30-06. For woods hunting I use a rifle zeroed at 100.
For the times I hunt open fields I sight in 2.5" high at 100. Some of my rifles have an inch+ shift between cold bore and hot which has caused me to hit high (once), but it still dropped right there. Add in temp differential and you can get another inch plus of deviation.
I've never shot a deer past 200 yards and doubt I will. But the situation had me thinking: if I sight in for mpbr at +2.5" with a warm gun, the cold bore could be +3.5" to +4.0". Even if the gun is shooting a little high, it still places me in the vitals out to a farther distance than I would take game.
If mpbr for a whitetail with an 8" vital zone, though I think 6" is a better figure to use, isn't it more difficult to judge mpbr and cold bore adjustment together? What if you are shooting past mpbr? Then you need to estimate a holdover.
Wouldn't it be more repeatable to set your maximum rise close to the 6" and aim at the lowest vital spot (the heart)? Well yes it would.
If you are 30-300 yards having a consistent point of aim just behind the front leg would put the bullet placement at the heart or lungs and help the shooter with consistency.
Like most things in hunting, people have things that work for them. Sometimes ideas look great at first but others have reasons they may not be so great.
Thanks again for the replies.
I see. I either break their neck, or shoot high shoulder. It's more a difference of aim point to yours.Thanks for the reply. The point of the technique is that you have the same point of aim, which is the heart. The bullet will then hit anywhere from point of aim to +5.7" which still has you through the lungs.
It actually takes away the need to hold over unless you are out past 320 yards. In which case I will hold off shooting. Others may not.
I always sight my hunting rifles using cold bore shots. It's kind of unfair, but I can shoot to 520yds off my back porch. Rifles that shift much from cold bore to shot number 3 don't make it to the woods. If it takes more than 2 shots, I failed as a hunter.
I think you're definitely on the right track with 2.5 high.
I wounder what if any drop there is from shooting in the cold, it's one of the reasons I was told to be high when sighted in.
You know, I had boss once who said the dumber someone is, the dumber they think everyone else is.
Well actually I have, but that's not the topic of the post. The topic is whether others have.
Second, the calculation would actually be setting the crosshairs LOWER, so the impact would be a little higher. Holding the crosshairs high would produce a higher impact.
Where did I say I was going to try a theory by taking a shot at a deer? You presumed that and then transferred your assumption into a real or proposed action by me.
Then thought you'd insult me because I hadn't lived up to your imagination (or hallucination)
I usually don't respond to stupid because it just leads to more, but yours hit me at just the right time and place.
Btw, after testing it worked REALLY well on the fellow below. I was just wondering if it was a technique anyone else had used and wrote the question in such a way as to hold stupid responses bay. My bad for thinking stupid wouldn't crash the party anyway.
If I get a chronograph I'll do some tests. I've had it 20 below when hunting.I have fired across the course matches in the snow. It was miserable. I was miserable. My zero's were different, and I think it was more due to the fact that my hands were cold, my glasses were fogging up, I was wearing a huge amount of clothing that stiffened me up, and changed my stock weld.
And, having shot in extreme heat, I can't tell much of a change in elevation because I can't get my heart rate down low enough to shoot a group!
Someday in the future, when all shooting will be electronic and humans won't be holding weapons or pulling triggers, maybe the stressful affects of extreme weather will only be seen in the ammunition, and not in the shooter. But until then, weather extremes affect the human more than the weapon.
If I get a chronograph I'll do some tests. I've had it 20 below when hunting.
I think some guys give there selfs to much credit on how they can range a animal.
..., theory is you can aim at the heart for shots out to 320 yards and place it in the vitals. Similar to Maximum Point Blank Range, but allowing greater distance with dead on hold with smaller vital zone variance.
Pretty close is for people who hunt pie plates and like to blood trail stuff
If I get a chronograph I'll do some tests. I've had it 20 below when hunting.
Could also put some ammo in the freezer, I know the air is not cold but your only shooting feet.The batteries on my chrony crap out when temperatures are in the 40's. I have kept them on the dash, to warm them up, and I have kept them in my pocket prior to loading them in the chronograph, and that helped. I am curious if someone has a chronograph that functions down to zero degrees.
Anyone in the woods at minus 20 risks turning into a Popsicle. I would stay inside where it is nice an warm.
Slightly more complicated than the above, you can’t be zeroed at the muzzle.
It will be more like this.
View attachment 869753
or at the one range at the peak of the arch.
Slightly more complicated than the above, you can’t be zeroed at the muzzle