Holdover With .308 @ 300 Yards?

Status
Not open for further replies.
I fit right in. In the basement talking/looking guns with the dog,drinking beer and the wife,which I haven't seen in two days, is upstair in the livingroom. Is there a club to join? This is getting off topic so thx all. Deadeye
 
Point Blank Range

If I were you, I wouldn't adjust anything. Hunting is shooting not scope adjusting.

There's a concept called "point blank range". That is a sight adjustment where the bullet will hit within the killing area while the point of aim is dead on the killing area. That is the bullet will fly within 4" up or down of the point of aim within the point blank range.

For a .308 w/a 150g spitzer bullet running at 2900 fps, the point blank range is 275 yards. Sight in dead on at 275 yards. The highest point of flight is 4" high at 150 yards and 4" low at 325 yards. So you should be able to aim dead center on a deer at any distance between 0 and 325 yards and drop the bullet in the killing zone..

To zero in on a point blank range, aim 2.8" high at 100 yards. After you sight the gun in, lock the scope settings. Then shoot at 8" steel gongs at the range at distances from 100-300 yards. When you can hit them reliably, go shoot bambi.

I'm scarred of adjusting sights in the field. There are many things that can happen when you do that and almost all the things are bad. Play with the scope in the field enough and you'll end up having to go up and insert the bullets manually. That's all I'm saying.
 
Be careful with PBR sight in systems. I use them religiously myself, but for no more than 2/3's anticipated tgt. size. U need to include room for shooter error and group size. If not some of your bullets will sail right over (at midrange tajectory) and under your tgt. (at max. PBR). It's what i like to refer to as the conservative PBR.

Don't let the naysayers dissuade u, i have improved my scores at matches, calculated ranges and target sizes at extreme ranges and seen shots made out to 300 yds. with 22 rimfires by applying mathematics in the field, many times--some things that could not have been accomplished otherwise.
 
You know, in reality, this guy is shooting a 308, if he simply sights in at 200y he can aim dead center of deer shoulder and drop the bullet in the dead zone out to 300y, and then some.

But, IF you want to know, and or place the bullet exactly where you want or need it, your going to have to do some math, like it or not, that's the way it is!

Also, your going to have to do shoots at the distances you intend to work, and under a variety of conditions, all the while compiling detailed notes for future reference.

The lab coat formulas we offered do work, but they where only a small part of the whole equation, we did not figure in any atmospheric variations, wind, inclination or ammunition variations data.

Now, do you need, or have to do all this to bust a 9 point out of your lucky stand....no, you don't! Your 308 is flat enough to do the deed out to 300y without too much computations, but your still going to have to some figuring in that big head of yours! lol hehehehe
 
I tend to go along with my good friend General Principles when it comes to deer hunting. First thing is that the odds are very high that the shot's gonna be inside of 200 yards. Yeah, I've had a few occasions to reach out past that, but rarely.

So, if I'm a couple of inches high at a hundred yards, I'm right at dead on at 200. That means that anywhere along the route, I don't have to think. Just sorta point and pull and go field-dress Bambi. With that sight-in, if Bambi cheated on me and is hanging out at around 300 yards, I just hold a guesstimated six or so inches higher than usual and ruin his day.

Ol' General Principles keeps me from having to think. Like the fella said, "When I works, I works hard. When I sits, I sits loose. And when I think, I falls to sleep."
 
Scoyote wrote:
Be careful with PBR sight in systems. I use them religiously myself, but for no more than 2/3's anticipated tgt. size. U need to include room for shooter error and group size.

Yep. I was assuming the average deer was about 16" from top to bottom. The point blank range I gave was 8", so the PBR was 1/2 the target size. Even better, if the OP can hit an 8" gong at 1, 2 & 300 yards all day long I think he's good to go. I'm just saying.

Of course if the OP can hit an 8" gong at 300 yards offhand all day, the deer ought to just surrender whenever they hear he's coming. :):)
 
Status
Not open for further replies.
Back
Top